Home / 8,749.11-13,115.76-3,198.54

Finding the Fourth Proportional to 8,749.11, 13,115.76 and 3,198.54

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Solution

The fourth proportional to 8,749.11, 13,115.76 and 3,198.54 is: 4,794.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.11 : 13,115.76 = 3,198.54 : x
  2. Step 2: Convert to fraction form
    8,749.11/13,115.76 = 3,198.54/x
  3. Step 3: Cross multiply
    8,749.11x = 13,115.76 × 3,198.54
  4. Step 4: Simplify right side
    8,749.11x = 41,951,282.99
  5. Step 5: Solve for x
    x = 41,951,282.99/8,749.11
  6. Step 6: Final answer
    x = 4,794.92

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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.