Question

find the first term of a proportion whose second third and fourth terms are 18,40 and 60 respectively






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Answer 1

${\small{\bold{\purple{\underline{Answer}}}}}$

12

Step-by-step explanation:

according to the rule of proportion the product of the mean it's equal to the product of the extreme

Let the 1st proportion be x

x:18::40:60

x*60 = 40*16

on solving the problem we get

X =12

Answer 2

Answer:

Your answer-

x:18::40:60

x×60=40×18

On solving we get,

x= 12