For a given recipe, 8 cups of flour are mixed with 16 cups of sugar. How many cups of flour should be used if 24 cups of sugar are used?
Assuming a constant ratio, fill out the table of equivalent ratios until you have found the value of x.
Flour Sugar
8 16
____ _____
x 24
Flour Sugar
8 16
x 24
To find the missing value of x, we can set up a proportion:
8/16 = x/24
Cross multiply to solve for x:
16x = 8*24
16x = 192
x = 192/16
x = 12
Therefore, if 24 cups of sugar are used, 12 cups of flour should be used.