Home / 18,610.38-27,909.88-6,127.85

Finding the Fourth Proportional to 18,610.38, 27,909.88 and 6,127.85

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Solution

The fourth proportional to 18,610.38, 27,909.88 and 6,127.85 is: 9,189.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,610.38 : 27,909.88 = 6,127.85 : x
  2. Step 2: Convert to fraction form
    18,610.38/27,909.88 = 6,127.85/x
  3. Step 3: Cross multiply
    18,610.38x = 27,909.88 × 6,127.85
  4. Step 4: Simplify right side
    18,610.38x = 171,027,612.61
  5. Step 5: Solve for x
    x = 171,027,612.61/18,610.38
  6. Step 6: Final answer
    x = 9,189.90

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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.