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Finding the Fourth Proportional to 18,363.56, 27,508.38 and 8,489.24

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Solution

The fourth proportional to 18,363.56, 27,508.38 and 8,489.24 is: 12,716.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,363.56 : 27,508.38 = 8,489.24 : x
  2. Step 2: Convert to fraction form
    18,363.56/27,508.38 = 8,489.24/x
  3. Step 3: Cross multiply
    18,363.56x = 27,508.38 × 8,489.24
  4. Step 4: Simplify right side
    18,363.56x = 233,525,239.83
  5. Step 5: Solve for x
    x = 233,525,239.83/18,363.56
  6. Step 6: Final answer
    x = 12,716.77

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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.