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Finding the Fourth Proportional to 18,545.49, 27,817.02 and 8,686.98

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Solution

The fourth proportional to 18,545.49, 27,817.02 and 8,686.98 is: 13,029.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,545.49 : 27,817.02 = 8,686.98 : x
  2. Step 2: Convert to fraction form
    18,545.49/27,817.02 = 8,686.98/x
  3. Step 3: Cross multiply
    18,545.49x = 27,817.02 × 8,686.98
  4. Step 4: Simplify right side
    18,545.49x = 241,645,896.40
  5. Step 5: Solve for x
    x = 241,645,896.40/18,545.49
  6. Step 6: Final answer
    x = 13,029.90

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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.