Home / 8,488.26-12,731.49-5,195.61

Finding the Fourth Proportional to 8,488.26, 12,731.49 and 5,195.61

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Solution

The fourth proportional to 8,488.26, 12,731.49 and 5,195.61 is: 7,792.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.26 : 12,731.49 = 5,195.61 : x
  2. Step 2: Convert to fraction form
    8,488.26/12,731.49 = 5,195.61/x
  3. Step 3: Cross multiply
    8,488.26x = 12,731.49 × 5,195.61
  4. Step 4: Simplify right side
    8,488.26x = 66,147,856.76
  5. Step 5: Solve for x
    x = 66,147,856.76/8,488.26
  6. Step 6: Final answer
    x = 7,792.86

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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.