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Finding the Fourth Proportional to 12,280.55, 18,404.35 and 11,493.23

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Solution

The fourth proportional to 12,280.55, 18,404.35 and 11,493.23 is: 17,224.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,280.55 : 18,404.35 = 11,493.23 : x
  2. Step 2: Convert to fraction form
    12,280.55/18,404.35 = 11,493.23/x
  3. Step 3: Cross multiply
    12,280.55x = 18,404.35 × 11,493.23
  4. Step 4: Simplify right side
    12,280.55x = 211,525,306.80
  5. Step 5: Solve for x
    x = 211,525,306.80/12,280.55
  6. Step 6: Final answer
    x = 17,224.42

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