Home / 12,400.38-18,600.52-4,502.88

Finding the Fourth Proportional to 12,400.38, 18,600.52 and 4,502.88

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Solution

The fourth proportional to 12,400.38, 18,600.52 and 4,502.88 is: 6,754.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.38 : 18,600.52 = 4,502.88 : x
  2. Step 2: Convert to fraction form
    12,400.38/18,600.52 = 4,502.88/x
  3. Step 3: Cross multiply
    12,400.38x = 18,600.52 × 4,502.88
  4. Step 4: Simplify right side
    12,400.38x = 83,755,909.50
  5. Step 5: Solve for x
    x = 83,755,909.50/12,400.38
  6. Step 6: Final answer
    x = 6,754.30

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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.