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Finding the Fourth Proportional to 17,313.80, 25,974.30 and 9,912.20

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Solution

The fourth proportional to 17,313.80, 25,974.30 and 9,912.20 is: 14,870.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,313.80 : 25,974.30 = 9,912.20 : x
  2. Step 2: Convert to fraction form
    17,313.80/25,974.30 = 9,912.20/x
  3. Step 3: Cross multiply
    17,313.80x = 25,974.30 × 9,912.20
  4. Step 4: Simplify right side
    17,313.80x = 257,462,456.46
  5. Step 5: Solve for x
    x = 257,462,456.46/17,313.80
  6. Step 6: Final answer
    x = 14,870.36

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