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Finding the Fourth Proportional to 7,961.75, 10,987.23 and 4,425.80

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Solution

The fourth proportional to 7,961.75, 10,987.23 and 4,425.80 is: 6,107.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.75 : 10,987.23 = 4,425.80 : x
  2. Step 2: Convert to fraction form
    7,961.75/10,987.23 = 4,425.80/x
  3. Step 3: Cross multiply
    7,961.75x = 10,987.23 × 4,425.80
  4. Step 4: Simplify right side
    7,961.75x = 48,627,282.53
  5. Step 5: Solve for x
    x = 48,627,282.53/7,961.75
  6. Step 6: Final answer
    x = 6,107.61

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