Find a fourth proportional to the numbers 13 , 52 , 21 .
Answer & explanation
Correct answer: option 1
Fourth Proportional of a,b and c = \(\frac{b\;×\;c}{a}\)
Fourth Proportional of 13 ,52 and 21 = \(\frac{52\;×\;21}{13}\) = 84
Find a fourth proportional to the numbers 13 , 52 , 21 .
Correct answer: option 1
Fourth Proportional of a,b and c = \(\frac{b\;×\;c}{a}\)
Fourth Proportional of 13 ,52 and 21 = \(\frac{52\;×\;21}{13}\) = 84