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Finding the Fourth Proportional to 18,384.30, 27,554.85 and 8,502.71

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Solution

The fourth proportional to 18,384.30, 27,554.85 and 8,502.71 is: 12,744.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,384.30 : 27,554.85 = 8,502.71 : x
  2. Step 2: Convert to fraction form
    18,384.30/27,554.85 = 8,502.71/x
  3. Step 3: Cross multiply
    18,384.30x = 27,554.85 × 8,502.71
  4. Step 4: Simplify right side
    18,384.30x = 234,290,760.87
  5. Step 5: Solve for x
    x = 234,290,760.87/18,384.30
  6. Step 6: Final answer
    x = 12,744.07

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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.