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Finding the Fourth Proportional to 13,796.22, 20,697.06 and 5,480.15

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Solution

The fourth proportional to 13,796.22, 20,697.06 and 5,480.15 is: 8,221.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,796.22 : 20,697.06 = 5,480.15 : x
  2. Step 2: Convert to fraction form
    13,796.22/20,697.06 = 5,480.15/x
  3. Step 3: Cross multiply
    13,796.22x = 20,697.06 × 5,480.15
  4. Step 4: Simplify right side
    13,796.22x = 113,422,993.36
  5. Step 5: Solve for x
    x = 113,422,993.36/13,796.22
  6. Step 6: Final answer
    x = 8,221.31

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