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Finding the Fourth Proportional to 12,270.96, 18,408.96 and 3,948.48

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Solution

The fourth proportional to 12,270.96, 18,408.96 and 3,948.48 is: 5,923.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.96 : 18,408.96 = 3,948.48 : x
  2. Step 2: Convert to fraction form
    12,270.96/18,408.96 = 3,948.48/x
  3. Step 3: Cross multiply
    12,270.96x = 18,408.96 × 3,948.48
  4. Step 4: Simplify right side
    12,270.96x = 72,687,410.38
  5. Step 5: Solve for x
    x = 72,687,410.38/12,270.96
  6. Step 6: Final answer
    x = 5,923.53

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