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Find the Missing Value in Proportion

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Date
Questions10
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1

Find the value of x in the proportion

21:6 = x:12

2

Find the value of x in the proportion

16: x = 128:184

3

Find the value of x in the proportion

5: x = 45:54

4

Find the value of x in the proportion

x :11 = 120:66

5

Find the value of x in the proportion

2:7 = 10: x

6

Find the value of x in the proportion

25: x = 225:117

7

Find the value of x in the proportion

3: x = 24:176

8

Find the value of x in the proportion

7: x = 14:48

9

Find the value of x in the proportion

16: x = 48:15

10

Find the value of x in the proportion

2: x = 18:63

Solved Worksheet Problems

Show All Workout

1

Find the value of x in the proportion

21:6 = 42:12

step 1

Write the given ratios in fraction form

21:6 =

216

y:6 =

y12

step 2

Find the Means & Extremes

21 x 12 = y x 6

Extremes = 21, 12

Means = 6, y

216

=

y12

Extremes = 21, 12

Means = 6, y

step 3

Rearrange the statement to find y

y = 42

y =

21 x 126

step 4

The missing term in the proportion is 42

Therefore the proportion is 21:6 = 42:12

Therefore the proportion is 21:6 = 42:12

2

Find the value of x in the proportion

16: 23 = 128:184

step 1

Write the given ratios in fraction form

16:y =

16y

128:184 =

128184

step 2

Find the Means & Extremes

16 x 184 = 128 x y

Extremes = 16, 184

Means = 128, y

16y

=

128184

Extremes = 16, 184

Means = 128, y

step 3

Rearrange the statement to find y

y = 23

y =

16 x 184128

step 4

The missing term in the proportion is 23

Therefore the proportion is 16: 23 = 128:184

Therefore the proportion is 16: 23 = 128:184

3

Find the value of x in the proportion

5: 6 = 45:54

step 1

Write the given ratios in fraction form

5:y =

5y

45:54 =

4554

step 2

Find the Means & Extremes

5 x 54 = 45 x y

Extremes = 5, 54

Means = 45, y

5y

=

4554

Extremes = 5, 54

Means = 45, y

step 3

Rearrange the statement to find y

y = 6

y =

5 x 5445

step 4

The missing term in the proportion is 6

Therefore the proportion is 5: 6 = 45:54

Therefore the proportion is 5: 6 = 45:54

4

Find the value of x in the proportion

20:11 = 120:66

step 1

Write the given ratios in fraction form

y:11 =

y11

120:66 =

12066

step 2

Find the Means & Extremes

x 66 = 120 x 11

Extremes = 66, y

Means = 120, 11

y11

=

12066

Extremes = 66, y

Means = 120, 11

step 3

Rearrange the statement to find y

y = 20

y =

120 x 1166

step 4

The missing term in the proportion is 20

Therefore the proportion is 20:11 = 120:66

Therefore the proportion is 20:11 = 120:66

5

Find the value of x in the proportion

2:7 = 10:35

step 1

Write the given ratios in fraction form

2:7 =

27

10:y =

10y

step 2

Find the Means & Extremes

2 x y = 10 x 7

Extremes = 2, y

Means = 10, 7

27

=

10y

Extremes = 2, y

Means = 10, 7

step 3

Rearrange the statement to find y

y = 35

y =

10 x 72

step 4

The missing term in the proportion is 35

Therefore the proportion is 2:7 = 10:35

Therefore the proportion is 2:7 = 10:35

6

Find the value of x in the proportion

25: 13 = 225:117

step 1

Write the given ratios in fraction form

25:y =

25y

225:117 =

225117

step 2

Find the Means & Extremes

25 x 117 = 225 x y

Extremes = 25, 117

Means = 225, y

25y

=

225117

Extremes = 25, 117

Means = 225, y

step 3

Rearrange the statement to find y

y = 13

y =

25 x 117225

step 4

The missing term in the proportion is 13

Therefore the proportion is 25: 13 = 225:117

Therefore the proportion is 25: 13 = 225:117

7

Find the value of x in the proportion

3: 22 = 24:176

step 1

Write the given ratios in fraction form

3:y =

3y

24:176 =

24176

step 2

Find the Means & Extremes

3 x 176 = 24 x y

Extremes = 3, 176

Means = 24, y

3y

=

24176

Extremes = 3, 176

Means = 24, y

step 3

Rearrange the statement to find y

y = 22

y =

3 x 17624

step 4

The missing term in the proportion is 22

Therefore the proportion is 3: 22 = 24:176

Therefore the proportion is 3: 22 = 24:176

8

Find the value of x in the proportion

7: 24 = 14:48

step 1

Write the given ratios in fraction form

7:y =

7y

14:48 =

1448

step 2

Find the Means & Extremes

7 x 48 = 14 x y

Extremes = 7, 48

Means = 14, y

7y

=

1448

Extremes = 7, 48

Means = 14, y

step 3

Rearrange the statement to find y

y = 24

y =

7 x 4814

step 4

The missing term in the proportion is 24

Therefore the proportion is 7: 24 = 14:48

Therefore the proportion is 7: 24 = 14:48

9

Find the value of x in the proportion

16: 5 = 48:15

step 1

Write the given ratios in fraction form

16:y =

16y

48:15 =

4815

step 2

Find the Means & Extremes

16 x 15 = 48 x y

Extremes = 16, 15

Means = 48, y

16y

=

4815

Extremes = 16, 15

Means = 48, y

step 3

Rearrange the statement to find y

y = 5

y =

16 x 1548

step 4

The missing term in the proportion is 5

Therefore the proportion is 16: 5 = 48:15

Therefore the proportion is 16: 5 = 48:15

10

Find the value of x in the proportion

2: 7 = 18:63

step 1

Write the given ratios in fraction form

2:y =

2y

18:63 =

1863

step 2

Find the Means & Extremes

2 x 63 = 18 x y

Extremes = 2, 63

Means = 18, y

2y

=

1863

Extremes = 2, 63

Means = 18, y

step 3

Rearrange the statement to find y

y = 7

y =

2 x 6318

step 4

The missing term in the proportion is 7

Therefore the proportion is 2: 7 = 18:63

Therefore the proportion is 2: 7 = 18:63

Online Test

Start my Challenge

Find the value of x in the proportion

17:19 = x:190

17:19 = x:190

Find the value of x in the proportion

15:x = 60:92

15:x = 60:92

Find the value of x in the proportion

20:16 = 180:x

20:16 = 180:x

Find the value of x in the proportion

x:21 = 18:189

x:21 = 18:189

Find the value of x in the proportion

19:13 = x:26

19:13 = x:26

Find the value of x in the proportion

22:19 = x:133

22:19 = x:133

Find the value of x in the proportion

x:13 = 84:78

x:13 = 84:78

Find the value of x in the proportion

x:14 = 70:140

x:14 = 70:140

Find the value of x in the proportion

7:x = 70:210

7:x = 70:210

Find the value of x in the proportion

19:17 = x:68

19:17 = x:68

Question:

Find the unknown value of x in the proportion.

3:6 :: x:10

Answer:

Find the unknown value of x in the proportion.

3:6 :: x:10

Answer:

step 1

Write the given ratios in fraction form

3:6 =

36

x:10 =

x10

step 2

Find the Means & Extremes

3 x 10 = x x 6

Extremes = 3, 10

Means = 6, x

36

=

x10

Extremes = 3, 10

Means = 6, x

step 3

Rearrange the statement to find x

x = 5

x =

3 x 106

step 4

The missing term in the proportion is 5

Therefore the proportion is 3:6 = 5:10

Therefore the proportion is 3:6 = 5:10