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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

16:23 = x:184

3

Find the value of x in the proportion

x :6 = 45:54

4

Find the value of x in the proportion

20: x = 120:66

5

Find the value of x in the proportion

2:7 = x:35

6

Find the value of x in the proportion

x :13 = 225:117

7

Find the value of x in the proportion

3:22 = 24: x

8

Find the value of x in the proportion

7:24 = x:48

9

Find the value of x in the proportion

16: x = 48:15

10

Find the value of x in the proportion

x :7 = 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

16:23 =

1623

y:23 =

y184

step 2

Find the Means & Extremes

16 x 184 = y x 23

Extremes = 16, 184

Means = 23, y

1623

=

y184

Extremes = 16, 184

Means = 23, y

step 3

Rearrange the statement to find y

y = 128

y =

16 x 18423

step 4

The missing term in the proportion is 128

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

y:6 =

y6

45:54 =

4554

step 2

Find the Means & Extremes

x 54 = 45 x 6

Extremes = 54, y

Means = 45, 6

y6

=

4554

Extremes = 54, y

Means = 45, 6

step 3

Rearrange the statement to find y

y = 5

y =

45 x 654

step 4

The missing term in the proportion is 5

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

20:y =

20y

120:66 =

12066

step 2

Find the Means & Extremes

20 x 66 = 120 x y

Extremes = 20, 66

Means = 120, y

20y

=

12066

Extremes = 20, 66

Means = 120, y

step 3

Rearrange the statement to find y

y = 11

y =

20 x 66120

step 4

The missing term in the proportion is 11

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

y:7 =

y35

step 2

Find the Means & Extremes

2 x 35 = y x 7

Extremes = 2, 35

Means = 7, y

27

=

y35

Extremes = 2, 35

Means = 7, y

step 3

Rearrange the statement to find y

y = 10

y =

2 x 357

step 4

The missing term in the proportion is 10

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

y:13 =

y13

225:117 =

225117

step 2

Find the Means & Extremes

x 117 = 225 x 13

Extremes = 117, y

Means = 225, 13

y13

=

225117

Extremes = 117, y

Means = 225, 13

step 3

Rearrange the statement to find y

y = 25

y =

225 x 13117

step 4

The missing term in the proportion is 25

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

3:22 =

322

24:y =

24y

step 2

Find the Means & Extremes

3 x y = 24 x 22

Extremes = 3, y

Means = 24, 22

322

=

24y

Extremes = 3, y

Means = 24, 22

step 3

Rearrange the statement to find y

y = 176

y =

24 x 223

step 4

The missing term in the proportion is 176

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

7:24 =

724

y:24 =

y48

step 2

Find the Means & Extremes

7 x 48 = y x 24

Extremes = 7, 48

Means = 24, y

724

=

y48

Extremes = 7, 48

Means = 24, y

step 3

Rearrange the statement to find y

y = 14

y =

7 x 4824

step 4

The missing term in the proportion is 14

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

y:7 =

y7

18:63 =

1863

step 2

Find the Means & Extremes

x 63 = 18 x 7

Extremes = 63, y

Means = 18, 7

y7

=

1863

Extremes = 63, y

Means = 18, 7

step 3

Rearrange the statement to find y

y = 2

y =

18 x 763

step 4

The missing term in the proportion is 2

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