Home / 8,081.46-12,112.38-3,399.66

Finding the Fourth Proportional to 8,081.46, 12,112.38 and 3,399.66

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Solution

The fourth proportional to 8,081.46, 12,112.38 and 3,399.66 is: 5,095.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.46 : 12,112.38 = 3,399.66 : x
  2. Step 2: Convert to fraction form
    8,081.46/12,112.38 = 3,399.66/x
  3. Step 3: Cross multiply
    8,081.46x = 12,112.38 × 3,399.66
  4. Step 4: Simplify right side
    8,081.46x = 41,177,973.79
  5. Step 5: Solve for x
    x = 41,177,973.79/8,081.46
  6. Step 6: Final answer
    x = 5,095.36

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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.