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Finding the Fourth Proportional to 18,265.10, 27,398.66 and 8,913.09

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Solution

The fourth proportional to 18,265.10, 27,398.66 and 8,913.09 is: 13,370.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,265.10 : 27,398.66 = 8,913.09 : x
  2. Step 2: Convert to fraction form
    18,265.10/27,398.66 = 8,913.09/x
  3. Step 3: Cross multiply
    18,265.10x = 27,398.66 × 8,913.09
  4. Step 4: Simplify right side
    18,265.10x = 244,206,626.52
  5. Step 5: Solve for x
    x = 244,206,626.52/18,265.10
  6. Step 6: Final answer
    x = 13,370.13

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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.