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Finding the Fourth Proportional to 18,230.38, 27,343.08 and 7,144.82

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Solution

The fourth proportional to 18,230.38, 27,343.08 and 7,144.82 is: 10,716.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,230.38 : 27,343.08 = 7,144.82 : x
  2. Step 2: Convert to fraction form
    18,230.38/27,343.08 = 7,144.82/x
  3. Step 3: Cross multiply
    18,230.38x = 27,343.08 × 7,144.82
  4. Step 4: Simplify right side
    18,230.38x = 195,361,248.13
  5. Step 5: Solve for x
    x = 195,361,248.13/18,230.38
  6. Step 6: Final answer
    x = 10,716.25

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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.