Home / 13,600.04-20,380.61-7,744.55

Finding the Fourth Proportional to 13,600.04, 20,380.61 and 7,744.55

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Solution

The fourth proportional to 13,600.04, 20,380.61 and 7,744.55 is: 11,605.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.04 : 20,380.61 = 7,744.55 : x
  2. Step 2: Convert to fraction form
    13,600.04/20,380.61 = 7,744.55/x
  3. Step 3: Cross multiply
    13,600.04x = 20,380.61 × 7,744.55
  4. Step 4: Simplify right side
    13,600.04x = 157,838,512.55
  5. Step 5: Solve for x
    x = 157,838,512.55/13,600.04
  6. Step 6: Final answer
    x = 11,605.74

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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.