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Finding the Fourth Proportional to 18,265.62, 27,410.49 and 8,404.50

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Solution

The fourth proportional to 18,265.62, 27,410.49 and 8,404.50 is: 12,612.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,265.62 : 27,410.49 = 8,404.50 : x
  2. Step 2: Convert to fraction form
    18,265.62/27,410.49 = 8,404.50/x
  3. Step 3: Cross multiply
    18,265.62x = 27,410.49 × 8,404.50
  4. Step 4: Simplify right side
    18,265.62x = 230,371,463.21
  5. Step 5: Solve for x
    x = 230,371,463.21/18,265.62
  6. Step 6: Final answer
    x = 12,612.30

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1.5x scale

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.