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Finding the Fourth Proportional to 18,404.80, 25,401.12 and 10,952

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Solution

The fourth proportional to 18,404.80, 25,401.12 and 10,952 is: 15,115.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404.80 : 25,401.12 = 10,952 : x
  2. Step 2: Convert to fraction form
    18,404.80/25,401.12 = 10,952/x
  3. Step 3: Cross multiply
    18,404.80x = 25,401.12 × 10,952
  4. Step 4: Simplify right side
    18,404.80x = 278,193,066.24
  5. Step 5: Solve for x
    x = 278,193,066.24/18,404.80
  6. Step 6: Final answer
    x = 15,115.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.