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Finding the Fourth Proportional to 17,400.78, 26,115 and 6,310.62

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Solution

The fourth proportional to 17,400.78, 26,115 and 6,310.62 is: 9,470.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,400.78 : 26,115 = 6,310.62 : x
  2. Step 2: Convert to fraction form
    17,400.78/26,115 = 6,310.62/x
  3. Step 3: Cross multiply
    17,400.78x = 26,115 × 6,310.62
  4. Step 4: Simplify right side
    17,400.78x = 164,801,841.30
  5. Step 5: Solve for x
    x = 164,801,841.30/17,400.78
  6. Step 6: Final answer
    x = 9,470.95

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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.