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Finding the Fourth Proportional to 12,308.92, 18,461.16 and 3,541.68

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Solution

The fourth proportional to 12,308.92, 18,461.16 and 3,541.68 is: 5,311.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,308.92 : 18,461.16 = 3,541.68 : x
  2. Step 2: Convert to fraction form
    12,308.92/18,461.16 = 3,541.68/x
  3. Step 3: Cross multiply
    12,308.92x = 18,461.16 × 3,541.68
  4. Step 4: Simplify right side
    12,308.92x = 65,383,521.15
  5. Step 5: Solve for x
    x = 65,383,521.15/12,308.92
  6. Step 6: Final answer
    x = 5,311.88

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