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Finding the Fourth Proportional to 12,545.92, 18,821.40 and 8,849.44

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Solution

The fourth proportional to 12,545.92, 18,821.40 and 8,849.44 is: 13,275.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.92 : 18,821.40 = 8,849.44 : x
  2. Step 2: Convert to fraction form
    12,545.92/18,821.40 = 8,849.44/x
  3. Step 3: Cross multiply
    12,545.92x = 18,821.40 × 8,849.44
  4. Step 4: Simplify right side
    12,545.92x = 166,558,850.02
  5. Step 5: Solve for x
    x = 166,558,850.02/12,545.92
  6. Step 6: Final answer
    x = 13,275.94

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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.