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Finding the Fourth Proportional to 18,581.97, 27,872.84 and 4,542.07

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Solution

The fourth proportional to 18,581.97, 27,872.84 and 4,542.07 is: 6,813.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.97 : 27,872.84 = 4,542.07 : x
  2. Step 2: Convert to fraction form
    18,581.97/27,872.84 = 4,542.07/x
  3. Step 3: Cross multiply
    18,581.97x = 27,872.84 × 4,542.07
  4. Step 4: Simplify right side
    18,581.97x = 126,600,390.38
  5. Step 5: Solve for x
    x = 126,600,390.38/18,581.97
  6. Step 6: Final answer
    x = 6,813.08

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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.