The fourth proportional to 4, 9, 16 is?

• a:b :: c:d
  => a*d=c*b
  => 4*d=16*9
  => d=36
• 11 years agoHelpfull: Yes(19) No(0)
• we know that a:b::c:d
  we can write =a*d=b*d
  =4*x=9*16
  x=36 ans
• 11 years agoHelpfull: Yes(3) No(0)
• d=bc/a
  d=(9*16)/4=36
  
• 11 years agoHelpfull: Yes(1) No(0)
• 2*2=4
  3*3=9
  4*4=16
  5*5=25
• 11 years agoHelpfull: Yes(1) No(4)
• 4,9,16,36
  
• 11 years agoHelpfull: Yes(1) No(0)
• 4 9 16 25
  4 is da square of 2
  9 is da square of 3
  16 is da square of 4 then 25 is da square of 5
• 11 years agoHelpfull: Yes(0) No(1)