Home / 7,432.75-11,137.26-3,922.61

Finding the Fourth Proportional to 7,432.75, 11,137.26 and 3,922.61

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Solution

The fourth proportional to 7,432.75, 11,137.26 and 3,922.61 is: 5,877.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,432.75 : 11,137.26 = 3,922.61 : x
  2. Step 2: Convert to fraction form
    7,432.75/11,137.26 = 3,922.61/x
  3. Step 3: Cross multiply
    7,432.75x = 11,137.26 × 3,922.61
  4. Step 4: Simplify right side
    7,432.75x = 43,687,127.45
  5. Step 5: Solve for x
    x = 43,687,127.45/7,432.75
  6. Step 6: Final answer
    x = 5,877.66

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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.