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Finding the Fourth Proportional to 18,237.26, 27,344.93 and 7,130.71

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Solution

The fourth proportional to 18,237.26, 27,344.93 and 7,130.71 is: 10,691.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,237.26 : 27,344.93 = 7,130.71 : x
  2. Step 2: Convert to fraction form
    18,237.26/27,344.93 = 7,130.71/x
  3. Step 3: Cross multiply
    18,237.26x = 27,344.93 × 7,130.71
  4. Step 4: Simplify right side
    18,237.26x = 194,988,765.80
  5. Step 5: Solve for x
    x = 194,988,765.80/18,237.26
  6. Step 6: Final answer
    x = 10,691.78

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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.