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Finding the Fourth Proportional to 11,600.55, 17,359.79 and 7,220.07

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Solution

The fourth proportional to 11,600.55, 17,359.79 and 7,220.07 is: 10,804.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,600.55 : 17,359.79 = 7,220.07 : x
  2. Step 2: Convert to fraction form
    11,600.55/17,359.79 = 7,220.07/x
  3. Step 3: Cross multiply
    11,600.55x = 17,359.79 × 7,220.07
  4. Step 4: Simplify right side
    11,600.55x = 125,338,862.88
  5. Step 5: Solve for x
    x = 125,338,862.88/11,600.55
  6. Step 6: Final answer
    x = 10,804.56

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