Home / 8,458.75-12,691.05-3,195.28

Finding the Fourth Proportional to 8,458.75, 12,691.05 and 3,195.28

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Solution

The fourth proportional to 8,458.75, 12,691.05 and 3,195.28 is: 4,794.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.75 : 12,691.05 = 3,195.28 : x
  2. Step 2: Convert to fraction form
    8,458.75/12,691.05 = 3,195.28/x
  3. Step 3: Cross multiply
    8,458.75x = 12,691.05 × 3,195.28
  4. Step 4: Simplify right side
    8,458.75x = 40,551,458.24
  5. Step 5: Solve for x
    x = 40,551,458.24/8,458.75
  6. Step 6: Final answer
    x = 4,794.02

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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.