CÁLCULO DEL TERMINO DESCONOCIDO EN UNA PROPORCIÓN

1.12/6 = x/5
 
 (5)(12) = 6x          X= 10


  60/6 = 6x/6


2. 4/x = 5/10


  (4)(10) = 5x        X=8


  40/5 = 5x/5


3.x/4 = 18/2


  (4)(18) = 2x        X=36


  72/2 = 2x/2


4.4/50 = x/25


  (25)(4) = 50x       X=2


 100/50 = 50x/50


5.x/8 = 5/7

  (8)(5) = 8x           X=5


 40/8 = 8x/8