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Finding the Fourth Proportional to 18,251.26, 27,375.81 and 5,103.34

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Solution

The fourth proportional to 18,251.26, 27,375.81 and 5,103.34 is: 7,654.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.26 : 27,375.81 = 5,103.34 : x
  2. Step 2: Convert to fraction form
    18,251.26/27,375.81 = 5,103.34/x
  3. Step 3: Cross multiply
    18,251.26x = 27,375.81 × 5,103.34
  4. Step 4: Simplify right side
    18,251.26x = 139,708,066.21
  5. Step 5: Solve for x
    x = 139,708,066.21/18,251.26
  6. Step 6: Final answer
    x = 7,654.71

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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.