If #y = 14# when #x = 18#, how do you find #x# when #y = 316#?

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Answer 1 · 2018-05-07T19:30:11

#x# = ~406.29

y = 14 when x = 18; y = 316, what is x?

Create a proportion.

#y/x# #14/18# = #316/x#

Cross multiply.

#14x = 5688#

Divide 5688 by 14 to isolate for x.

#5688/14# = #x#

#x# = 406.28571428571