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Finding the Fourth Proportional to 10,375.12, 15,542.10 and 4,820.80

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Solution

The fourth proportional to 10,375.12, 15,542.10 and 4,820.80 is: 7,221.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,375.12 : 15,542.10 = 4,820.80 : x
  2. Step 2: Convert to fraction form
    10,375.12/15,542.10 = 4,820.80/x
  3. Step 3: Cross multiply
    10,375.12x = 15,542.10 × 4,820.80
  4. Step 4: Simplify right side
    10,375.12x = 74,925,355.68
  5. Step 5: Solve for x
    x = 74,925,355.68/10,375.12
  6. Step 6: Final answer
    x = 7,221.64

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