Home / 8,491.43-12,735.75-2,251.83

Finding the Fourth Proportional to 8,491.43, 12,735.75 and 2,251.83

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Solution

The fourth proportional to 8,491.43, 12,735.75 and 2,251.83 is: 3,377.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,491.43 : 12,735.75 = 2,251.83 : x
  2. Step 2: Convert to fraction form
    8,491.43/12,735.75 = 2,251.83/x
  3. Step 3: Cross multiply
    8,491.43x = 12,735.75 × 2,251.83
  4. Step 4: Simplify right side
    8,491.43x = 28,678,743.92
  5. Step 5: Solve for x
    x = 28,678,743.92/8,491.43
  6. Step 6: Final answer
    x = 3,377.38

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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.