SOLUTION: How do you find the missing value in this ordered pair using direct variation? (4,y) and (16, 12)

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Question 706939: How do you find the missing value in this ordered pair using direct variation?
(4,y) and (16, 12)
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Write it as a ratio equation
:
4%2Fy = 16%2F12
Cross multiply
16y = 4 * 12
16y = 48
y = 48/16
y = 3