Home / 8,081.32-12,121.62-2,534.54

Finding the Fourth Proportional to 8,081.32, 12,121.62 and 2,534.54

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Solution

The fourth proportional to 8,081.32, 12,121.62 and 2,534.54 is: 3,801.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.32 : 12,121.62 = 2,534.54 : x
  2. Step 2: Convert to fraction form
    8,081.32/12,121.62 = 2,534.54/x
  3. Step 3: Cross multiply
    8,081.32x = 12,121.62 × 2,534.54
  4. Step 4: Simplify right side
    8,081.32x = 30,722,730.75
  5. Step 5: Solve for x
    x = 30,722,730.75/8,081.32
  6. Step 6: Final answer
    x = 3,801.70

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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.