Home / 13,451.92-20,179.12-3,591.20

Finding the Fourth Proportional to 13,451.92, 20,179.12 and 3,591.20

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Solution

The fourth proportional to 13,451.92, 20,179.12 and 3,591.20 is: 5,387.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.92 : 20,179.12 = 3,591.20 : x
  2. Step 2: Convert to fraction form
    13,451.92/20,179.12 = 3,591.20/x
  3. Step 3: Cross multiply
    13,451.92x = 20,179.12 × 3,591.20
  4. Step 4: Simplify right side
    13,451.92x = 72,467,255.74
  5. Step 5: Solve for x
    x = 72,467,255.74/13,451.92
  6. Step 6: Final answer
    x = 5,387.13

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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.