Home / 10,092.20-15,132.90-4,242.20

Finding the Fourth Proportional to 10,092.20, 15,132.90 and 4,242.20

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Solution

The fourth proportional to 10,092.20, 15,132.90 and 4,242.20 is: 6,361.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,092.20 : 15,132.90 = 4,242.20 : x
  2. Step 2: Convert to fraction form
    10,092.20/15,132.90 = 4,242.20/x
  3. Step 3: Cross multiply
    10,092.20x = 15,132.90 × 4,242.20
  4. Step 4: Simplify right side
    10,092.20x = 64,196,788.38
  5. Step 5: Solve for x
    x = 64,196,788.38/10,092.20
  6. Step 6: Final answer
    x = 6,361.03

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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.