Question

3,12 and 4. Find the fourth proportional​

Answer 1

Answer:

Now, we will apply the cross multiplication method here i.e. we will multiply the numerator of first fraction with the denominator of the second fraction and the numerator of second fraction with the denominator of the first fraction. So, the required fourth proportion of 3, 12 and 4 is 16.

Answer 2

Fourth proportional will be:
3xx=12x4
3x=48
x=48/3 that is 16.