Home / 11,917.87-17,874.27-4,519.73

Finding the Fourth Proportional to 11,917.87, 17,874.27 and 4,519.73

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Solution

The fourth proportional to 11,917.87, 17,874.27 and 4,519.73 is: 6,778.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.87 : 17,874.27 = 4,519.73 : x
  2. Step 2: Convert to fraction form
    11,917.87/17,874.27 = 4,519.73/x
  3. Step 3: Cross multiply
    11,917.87x = 17,874.27 × 4,519.73
  4. Step 4: Simplify right side
    11,917.87x = 80,786,919.03
  5. Step 5: Solve for x
    x = 80,786,919.03/11,917.87
  6. Step 6: Final answer
    x = 6,778.64

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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.