Home / 8,744.78-13,118.47-2,819.70

Finding the Fourth Proportional to 8,744.78, 13,118.47 and 2,819.70

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Solution

The fourth proportional to 8,744.78, 13,118.47 and 2,819.70 is: 4,229.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,744.78 : 13,118.47 = 2,819.70 : x
  2. Step 2: Convert to fraction form
    8,744.78/13,118.47 = 2,819.70/x
  3. Step 3: Cross multiply
    8,744.78x = 13,118.47 × 2,819.70
  4. Step 4: Simplify right side
    8,744.78x = 36,990,149.86
  5. Step 5: Solve for x
    x = 36,990,149.86/8,744.78
  6. Step 6: Final answer
    x = 4,229.97

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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.