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Finding the Fourth Proportional to 9,603.78, 13,252.77 and 5,355.32

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Solution

The fourth proportional to 9,603.78, 13,252.77 and 5,355.32 is: 7,390.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,603.78 : 13,252.77 = 5,355.32 : x
  2. Step 2: Convert to fraction form
    9,603.78/13,252.77 = 5,355.32/x
  3. Step 3: Cross multiply
    9,603.78x = 13,252.77 × 5,355.32
  4. Step 4: Simplify right side
    9,603.78x = 70,972,757.97
  5. Step 5: Solve for x
    x = 70,972,757.97/9,603.78
  6. Step 6: Final answer
    x = 7,390.09

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