Home / 8,664.30-12,997.82-2,819.54

Finding the Fourth Proportional to 8,664.30, 12,997.82 and 2,819.54

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Solution

The fourth proportional to 8,664.30, 12,997.82 and 2,819.54 is: 4,229.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.30 : 12,997.82 = 2,819.54 : x
  2. Step 2: Convert to fraction form
    8,664.30/12,997.82 = 2,819.54/x
  3. Step 3: Cross multiply
    8,664.30x = 12,997.82 × 2,819.54
  4. Step 4: Simplify right side
    8,664.30x = 36,647,873.40
  5. Step 5: Solve for x
    x = 36,647,873.40/8,664.30
  6. Step 6: Final answer
    x = 4,229.76

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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.