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Finding the Fourth Proportional to 18,363.78, 27,545.67 and 11,773.62

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Solution

The fourth proportional to 18,363.78, 27,545.67 and 11,773.62 is: 17,660.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,363.78 : 27,545.67 = 11,773.62 : x
  2. Step 2: Convert to fraction form
    18,363.78/27,545.67 = 11,773.62/x
  3. Step 3: Cross multiply
    18,363.78x = 27,545.67 × 11,773.62
  4. Step 4: Simplify right side
    18,363.78x = 324,312,251.23
  5. Step 5: Solve for x
    x = 324,312,251.23/18,363.78
  6. Step 6: Final answer
    x = 17,660.43

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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.