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Finding the Fourth Proportional to 11,226.72, 16,854.66 and 8,631.48

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Solution

The fourth proportional to 11,226.72, 16,854.66 and 8,631.48 is: 12,958.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,226.72 : 16,854.66 = 8,631.48 : x
  2. Step 2: Convert to fraction form
    11,226.72/16,854.66 = 8,631.48/x
  3. Step 3: Cross multiply
    11,226.72x = 16,854.66 × 8,631.48
  4. Step 4: Simplify right side
    11,226.72x = 145,480,660.70
  5. Step 5: Solve for x
    x = 145,480,660.70/11,226.72
  6. Step 6: Final answer
    x = 12,958.43

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