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Finding the Fourth Proportional to 17,451, 26,184.90 and 8,686.68

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Solution

The fourth proportional to 17,451, 26,184.90 and 8,686.68 is: 13,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,451 : 26,184.90 = 8,686.68 : x
  2. Step 2: Convert to fraction form
    17,451/26,184.90 = 8,686.68/x
  3. Step 3: Cross multiply
    17,451x = 26,184.90 × 8,686.68
  4. Step 4: Simplify right side
    17,451x = 227,459,847.13
  5. Step 5: Solve for x
    x = 227,459,847.13/17,451
  6. Step 6: Final answer
    x = 13,034.20

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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.