Find the Missing Value in Proportion: Worksheets, Online Test and Calculators

Find the missing value in proportion worksheets, solved worksheet problems or exercises with step-by-step work, formative assessment as online test, calculator and more learning resources to learn, practice, assess and master the basic math skills of ratio and proportion.

Find the Missing Value in Proportion
Name Grade School
Date Questions10 Score

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
216
=
y12
21 x 12 = y x 6
Extremes = 21, 12
Means = 6, y
step 3
Rearrange the statement to find y
y =
21 x 126
y = 42
step 4
The missing term in the proportion is 42
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
16y
=
128184
16 x 184 = 128 x y
Extremes = 16, 184
Means = 128, y
step 3
Rearrange the statement to find y
y =
16 x 184128
y = 23
step 4
The missing term in the proportion is 23
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
5y
=
4554
5 x 54 = 45 x y
Extremes = 5, 54
Means = 45, y
step 3
Rearrange the statement to find y
y =
5 x 5445
y = 6
step 4
The missing term in the proportion is 6
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
y11
=
12066
x 66 = 120 x 11
Extremes = 66, y
Means = 120, 11
step 3
Rearrange the statement to find y
y =
120 x 1166
y = 20
step 4
The missing term in the proportion is 20
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
27
=
10y
2 x y = 10 x 7
Extremes = 2, y
Means = 10, 7
step 3
Rearrange the statement to find y
y =
10 x 72
y = 35
step 4
The missing term in the proportion is 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
25y
=
225117
25 x 117 = 225 x y
Extremes = 25, 117
Means = 225, y
step 3
Rearrange the statement to find y
y =
25 x 117225
y = 13
step 4
The missing term in the proportion is 13
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
3y
=
24176
3 x 176 = 24 x y
Extremes = 3, 176
Means = 24, y
step 3
Rearrange the statement to find y
y =
3 x 17624
y = 22
step 4
The missing term in the proportion is 22
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
7y
=
1448
7 x 48 = 14 x y
Extremes = 7, 48
Means = 14, y
step 3
Rearrange the statement to find y
y =
7 x 4814
y = 24
step 4
The missing term in the proportion is 24
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
16y
=
4815
16 x 15 = 48 x y
Extremes = 16, 15
Means = 48, y
step 3
Rearrange the statement to find y
y =
16 x 1548
y = 5
step 4
The missing term in the proportion is 5
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
2y
=
1863
2 x 63 = 18 x y
Extremes = 2, 63
Means = 18, y
step 3
Rearrange the statement to find y
y =
2 x 6318
y = 7
step 4
The missing term in the proportion is 7
Therefore the proportion is 2: 7 = 18:63

Worksheet: Find the Missing Value in Proportion

Find the missing value in proportion worksheet is the largest collection of practice problems and solved exercises which can be served as homework, classwork or assignment problems for the students to learn, practice, assess, iterate and master the skills of how to solve such ratio and proportion problems in basic mathematics.

Online Test
00:00
Start my Challenge
Find the value of x in the proportion
17:19 = x:190
Find the value of x in the proportion
15:x = 60:92
Find the value of x in the proportion
20:16 = 180:x
Find the value of x in the proportion
x:21 = 18:189
Find the value of x in the proportion
19:13 = x:26
Find the value of x in the proportion
22:19 = x:133
Find the value of x in the proportion
x:13 = 84:78
Find the value of x in the proportion
x:14 = 70:140
Find the value of x in the proportion
7:x = 70:210
Find the value of x in the proportion
19:17 = x:68

Online Test: Find the Missing Value in Proportion

This online test to find the missing value in proportion is a formative assessment which can be used as homework, classwork or assignment problems to assess and improve the learner's math skills on ratio and proportion.

Missing Number in Proportion Calculator

: :
3:6 :: 5:10
x = 5
show workout

Work with steps - Find Missing Number in Proportion

Question:
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
36
=
x10
3 x 10 = x x 6
Extremes = 3, 10
Means = 6, x
step 3
Rearrange the statement to find x
x =
3 x 106
x = 5
step 4
The missing term in the proportion is 5
Therefore the proportion is 3:6 = 5:10

Missing number in proportion calculator is a key tool for users to generate step-by-step work to quickly understand the calculation, solve the homework problems, solve the classwork problems, prepare the answer key document for summative and formative assessments or immediately verify the entire calculation for the user supplied input values.