Home / 10,149.11-15,213.21-4,876.20

Finding the Fourth Proportional to 10,149.11, 15,213.21 and 4,876.20

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Solution

The fourth proportional to 10,149.11, 15,213.21 and 4,876.20 is: 7,309.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,149.11 : 15,213.21 = 4,876.20 : x
  2. Step 2: Convert to fraction form
    10,149.11/15,213.21 = 4,876.20/x
  3. Step 3: Cross multiply
    10,149.11x = 15,213.21 × 4,876.20
  4. Step 4: Simplify right side
    10,149.11x = 74,182,654.60
  5. Step 5: Solve for x
    x = 74,182,654.60/10,149.11
  6. Step 6: Final answer
    x = 7,309.28

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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.