Home / 18,490.78-27,737.49-5,344.18

Finding the Fourth Proportional to 18,490.78, 27,737.49 and 5,344.18

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Solution

The fourth proportional to 18,490.78, 27,737.49 and 5,344.18 is: 8,016.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490.78 : 27,737.49 = 5,344.18 : x
  2. Step 2: Convert to fraction form
    18,490.78/27,737.49 = 5,344.18/x
  3. Step 3: Cross multiply
    18,490.78x = 27,737.49 × 5,344.18
  4. Step 4: Simplify right side
    18,490.78x = 148,234,059.94
  5. Step 5: Solve for x
    x = 148,234,059.94/18,490.78
  6. Step 6: Final answer
    x = 8,016.65

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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.