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Finding the Fourth Proportional to 8,857.29, 13,276.82 and 3,929.25

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Solution

The fourth proportional to 8,857.29, 13,276.82 and 3,929.25 is: 5,889.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857.29 : 13,276.82 = 3,929.25 : x
  2. Step 2: Convert to fraction form
    8,857.29/13,276.82 = 3,929.25/x
  3. Step 3: Cross multiply
    8,857.29x = 13,276.82 × 3,929.25
  4. Step 4: Simplify right side
    8,857.29x = 52,167,944.99
  5. Step 5: Solve for x
    x = 52,167,944.99/8,857.29
  6. Step 6: Final answer
    x = 5,889.83

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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.