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Finding the Fourth Proportional to 11,413.76, 17,103.80 and 5,175.68

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Solution

The fourth proportional to 11,413.76, 17,103.80 and 5,175.68 is: 7,755.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,413.76 : 17,103.80 = 5,175.68 : x
  2. Step 2: Convert to fraction form
    11,413.76/17,103.80 = 5,175.68/x
  3. Step 3: Cross multiply
    11,413.76x = 17,103.80 × 5,175.68
  4. Step 4: Simplify right side
    11,413.76x = 88,523,795.58
  5. Step 5: Solve for x
    x = 88,523,795.58/11,413.76
  6. Step 6: Final answer
    x = 7,755.88

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