Home / 10,167.79-15,267.17-9,666.61

Finding the Fourth Proportional to 10,167.79, 15,267.17 and 9,666.61

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Solution

The fourth proportional to 10,167.79, 15,267.17 and 9,666.61 is: 14,514.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,167.79 : 15,267.17 = 9,666.61 : x
  2. Step 2: Convert to fraction form
    10,167.79/15,267.17 = 9,666.61/x
  3. Step 3: Cross multiply
    10,167.79x = 15,267.17 × 9,666.61
  4. Step 4: Simplify right side
    10,167.79x = 147,581,778.19
  5. Step 5: Solve for x
    x = 147,581,778.19/10,167.79
  6. Step 6: Final answer
    x = 14,514.64

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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.