Home / 10,076.30-15,114.45-3,149.90

Finding the Fourth Proportional to 10,076.30, 15,114.45 and 3,149.90

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Solution

The fourth proportional to 10,076.30, 15,114.45 and 3,149.90 is: 4,724.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,076.30 : 15,114.45 = 3,149.90 : x
  2. Step 2: Convert to fraction form
    10,076.30/15,114.45 = 3,149.90/x
  3. Step 3: Cross multiply
    10,076.30x = 15,114.45 × 3,149.90
  4. Step 4: Simplify right side
    10,076.30x = 47,609,006.06
  5. Step 5: Solve for x
    x = 47,609,006.06/10,076.30
  6. Step 6: Final answer
    x = 4,724.85

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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.