Home / 10,268.20-15,402.14-2,872.55

Finding the Fourth Proportional to 10,268.20, 15,402.14 and 2,872.55

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Solution

The fourth proportional to 10,268.20, 15,402.14 and 2,872.55 is: 4,308.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,268.20 : 15,402.14 = 2,872.55 : x
  2. Step 2: Convert to fraction form
    10,268.20/15,402.14 = 2,872.55/x
  3. Step 3: Cross multiply
    10,268.20x = 15,402.14 × 2,872.55
  4. Step 4: Simplify right side
    10,268.20x = 44,243,452.17
  5. Step 5: Solve for x
    x = 44,243,452.17/10,268.20
  6. Step 6: Final answer
    x = 4,308.78

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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.