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Finding the Fourth Proportional to 8,921.35, 13,374.49 and 5,627.19

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Solution

The fourth proportional to 8,921.35, 13,374.49 and 5,627.19 is: 8,436.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.35 : 13,374.49 = 5,627.19 : x
  2. Step 2: Convert to fraction form
    8,921.35/13,374.49 = 5,627.19/x
  3. Step 3: Cross multiply
    8,921.35x = 13,374.49 × 5,627.19
  4. Step 4: Simplify right side
    8,921.35x = 75,260,796.38
  5. Step 5: Solve for x
    x = 75,260,796.38/8,921.35
  6. Step 6: Final answer
    x = 8,436.03

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