Home / 7,761.15-11,638.62-3,375.54

Finding the Fourth Proportional to 7,761.15, 11,638.62 and 3,375.54

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Solution

The fourth proportional to 7,761.15, 11,638.62 and 3,375.54 is: 5,061.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,761.15 : 11,638.62 = 3,375.54 : x
  2. Step 2: Convert to fraction form
    7,761.15/11,638.62 = 3,375.54/x
  3. Step 3: Cross multiply
    7,761.15x = 11,638.62 × 3,375.54
  4. Step 4: Simplify right side
    7,761.15x = 39,286,627.35
  5. Step 5: Solve for x
    x = 39,286,627.35/7,761.15
  6. Step 6: Final answer
    x = 5,061.96

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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.