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Finding the Fourth Proportional to 8,508.65, 12,762.36 and 2,665.17

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Solution

The fourth proportional to 8,508.65, 12,762.36 and 2,665.17 is: 3,997.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.65 : 12,762.36 = 2,665.17 : x
  2. Step 2: Convert to fraction form
    8,508.65/12,762.36 = 2,665.17/x
  3. Step 3: Cross multiply
    8,508.65x = 12,762.36 × 2,665.17
  4. Step 4: Simplify right side
    8,508.65x = 34,013,859.00
  5. Step 5: Solve for x
    x = 34,013,859.00/8,508.65
  6. Step 6: Final answer
    x = 3,997.56

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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.