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Finding the Fourth Proportional to 8,589.90, 12,884.85 and 2,746.96

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Solution

The fourth proportional to 8,589.90, 12,884.85 and 2,746.96 is: 4,120.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.90 : 12,884.85 = 2,746.96 : x
  2. Step 2: Convert to fraction form
    8,589.90/12,884.85 = 2,746.96/x
  3. Step 3: Cross multiply
    8,589.90x = 12,884.85 × 2,746.96
  4. Step 4: Simplify right side
    8,589.90x = 35,394,167.56
  5. Step 5: Solve for x
    x = 35,394,167.56/8,589.90
  6. Step 6: Final answer
    x = 4,120.44

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