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Finding the Fourth Proportional to 8,231.00, 12,345.20 and 2,684.31

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Solution

The fourth proportional to 8,231.00, 12,345.20 and 2,684.31 is: 4,026.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.00 : 12,345.20 = 2,684.31 : x
  2. Step 2: Convert to fraction form
    8,231.00/12,345.20 = 2,684.31/x
  3. Step 3: Cross multiply
    8,231.00x = 12,345.20 × 2,684.31
  4. Step 4: Simplify right side
    8,231.00x = 33,138,350.52
  5. Step 5: Solve for x
    x = 33,138,350.52/8,231.00
  6. Step 6: Final answer
    x = 4,026.04

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