Home / 18,230.31-27,329.04-6,540.78

Finding the Fourth Proportional to 18,230.31, 27,329.04 and 6,540.78

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Solution

The fourth proportional to 18,230.31, 27,329.04 and 6,540.78 is: 9,805.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,230.31 : 27,329.04 = 6,540.78 : x
  2. Step 2: Convert to fraction form
    18,230.31/27,329.04 = 6,540.78/x
  3. Step 3: Cross multiply
    18,230.31x = 27,329.04 × 6,540.78
  4. Step 4: Simplify right side
    18,230.31x = 178,753,238.25
  5. Step 5: Solve for x
    x = 178,753,238.25/18,230.31
  6. Step 6: Final answer
    x = 9,805.28

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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.