Home / 8,576.20-12,865.92-3,028.90

Finding the Fourth Proportional to 8,576.20, 12,865.92 and 3,028.90

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Solution

The fourth proportional to 8,576.20, 12,865.92 and 3,028.90 is: 4,543.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,576.20 : 12,865.92 = 3,028.90 : x
  2. Step 2: Convert to fraction form
    8,576.20/12,865.92 = 3,028.90/x
  3. Step 3: Cross multiply
    8,576.20x = 12,865.92 × 3,028.90
  4. Step 4: Simplify right side
    8,576.20x = 38,969,585.09
  5. Step 5: Solve for x
    x = 38,969,585.09/8,576.20
  6. Step 6: Final answer
    x = 4,543.92

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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.