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Finding the Fourth Proportional to 9,296.80, 13,945.20 and 5,610.40

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Solution

The fourth proportional to 9,296.80, 13,945.20 and 5,610.40 is: 8,415.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,296.80 : 13,945.20 = 5,610.40 : x
  2. Step 2: Convert to fraction form
    9,296.80/13,945.20 = 5,610.40/x
  3. Step 3: Cross multiply
    9,296.80x = 13,945.20 × 5,610.40
  4. Step 4: Simplify right side
    9,296.80x = 78,238,150.08
  5. Step 5: Solve for x
    x = 78,238,150.08/9,296.80
  6. Step 6: Final answer
    x = 8,415.60

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