Home / 52,518-78,777-13,606

Finding the Fourth Proportional to 52,518, 78,777 and 13,606

Calculator

Solution

The fourth proportional to 52,518, 78,777 and 13,606 is: 20,409

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,518 : 78,777 = 13,606 : x
  2. Step 2: Convert to fraction form
    52,518/78,777 = 13,606/x
  3. Step 3: Cross multiply
    52,518x = 78,777 × 13,606
  4. Step 4: Simplify right side
    52,518x = 1,071,839,862
  5. Step 5: Solve for x
    x = 1,071,839,862/52,518
  6. Step 6: Final answer
    x = 20,409

Related Problems

Find fourth proportional to 26,259, 39,388.50 and 6,803
Half scale
Find fourth proportional to 105,036, 157,554 and 27,212
Double scale
Find fourth proportional to 52,519, 78,778.50 and 13,607
Similar ratio
Find fourth proportional to 78,777, 118,165.50 and 20,409
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.