Home / 18,664.38-25,721.42-13,349.97

Finding the Fourth Proportional to 18,664.38, 25,721.42 and 13,349.97

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Solution

The fourth proportional to 18,664.38, 25,721.42 and 13,349.97 is: 18,397.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664.38 : 25,721.42 = 13,349.97 : x
  2. Step 2: Convert to fraction form
    18,664.38/25,721.42 = 13,349.97/x
  3. Step 3: Cross multiply
    18,664.38x = 25,721.42 × 13,349.97
  4. Step 4: Simplify right side
    18,664.38x = 343,380,118.61
  5. Step 5: Solve for x
    x = 343,380,118.61/18,664.38
  6. Step 6: Final answer
    x = 18,397.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.