Solving Proportion Problems
Question 1:
y is directly proportional to the square of x.
When x = 4, y = 48, find y when
x = 9.
243
Question 2:
y is directly proportional to the square root of x.
When x = 16, y = 12, find y when
x = 36.
18
Question 3:
y is inversely proportional to the cube root of x.
When x = 8, y = 4, find y when
x = 64.
2
Question 4:
y is inversely proportional to the square of x.
When x = 5, y = 432, find y when
x = 12.
75
