Home / 8,715.20-13,064.88-3,517.52

Finding the Fourth Proportional to 8,715.20, 13,064.88 and 3,517.52

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Solution

The fourth proportional to 8,715.20, 13,064.88 and 3,517.52 is: 5,273.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.20 : 13,064.88 = 3,517.52 : x
  2. Step 2: Convert to fraction form
    8,715.20/13,064.88 = 3,517.52/x
  3. Step 3: Cross multiply
    8,715.20x = 13,064.88 × 3,517.52
  4. Step 4: Simplify right side
    8,715.20x = 45,955,976.70
  5. Step 5: Solve for x
    x = 45,955,976.70/8,715.20
  6. Step 6: Final answer
    x = 5,273.08

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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.