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Finding the Fourth Proportional to 18,473.72, 27,710.42 and 12,535.92

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Solution

The fourth proportional to 18,473.72, 27,710.42 and 12,535.92 is: 18,803.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,473.72 : 27,710.42 = 12,535.92 : x
  2. Step 2: Convert to fraction form
    18,473.72/27,710.42 = 12,535.92/x
  3. Step 3: Cross multiply
    18,473.72x = 27,710.42 × 12,535.92
  4. Step 4: Simplify right side
    18,473.72x = 347,375,545.61
  5. Step 5: Solve for x
    x = 347,375,545.61/18,473.72
  6. Step 6: Final answer
    x = 18,803.77

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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.