Home / 8,469.11-11,679.75-5,481.83

Finding the Fourth Proportional to 8,469.11, 11,679.75 and 5,481.83

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Solution

The fourth proportional to 8,469.11, 11,679.75 and 5,481.83 is: 7,559.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.11 : 11,679.75 = 5,481.83 : x
  2. Step 2: Convert to fraction form
    8,469.11/11,679.75 = 5,481.83/x
  3. Step 3: Cross multiply
    8,469.11x = 11,679.75 × 5,481.83
  4. Step 4: Simplify right side
    8,469.11x = 64,026,345.54
  5. Step 5: Solve for x
    x = 64,026,345.54/8,469.11
  6. Step 6: Final answer
    x = 7,559.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.