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Finding the Fourth Proportional to 8,363, 12,545.22 and 2,207

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Solution

The fourth proportional to 8,363, 12,545.22 and 2,207 is: 3,310.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,363 : 12,545.22 = 2,207 : x
  2. Step 2: Convert to fraction form
    8,363/12,545.22 = 2,207/x
  3. Step 3: Cross multiply
    8,363x = 12,545.22 × 2,207
  4. Step 4: Simplify right side
    8,363x = 27,687,300.54
  5. Step 5: Solve for x
    x = 27,687,300.54/8,363
  6. Step 6: Final answer
    x = 3,310.69

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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.