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Finding the Fourth Proportional to 12,326.75, 18,481.47 and 4,319.56

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Solution

The fourth proportional to 12,326.75, 18,481.47 and 4,319.56 is: 6,476.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,326.75 : 18,481.47 = 4,319.56 : x
  2. Step 2: Convert to fraction form
    12,326.75/18,481.47 = 4,319.56/x
  3. Step 3: Cross multiply
    12,326.75x = 18,481.47 × 4,319.56
  4. Step 4: Simplify right side
    12,326.75x = 79,831,825.46
  5. Step 5: Solve for x
    x = 79,831,825.46/12,326.75
  6. Step 6: Final answer
    x = 6,476.31

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