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Finding the Fourth Proportional to 18,544.62, 27,820.42 and 7,452.20

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Solution

The fourth proportional to 18,544.62, 27,820.42 and 7,452.20 is: 11,179.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,544.62 : 27,820.42 = 7,452.20 : x
  2. Step 2: Convert to fraction form
    18,544.62/27,820.42 = 7,452.20/x
  3. Step 3: Cross multiply
    18,544.62x = 27,820.42 × 7,452.20
  4. Step 4: Simplify right side
    18,544.62x = 207,323,333.92
  5. Step 5: Solve for x
    x = 207,323,333.92/18,544.62
  6. Step 6: Final answer
    x = 11,179.70

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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.