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Finding the Fourth Proportional to 15,319.80, 22,981.86 and 5,456.16

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Solution

The fourth proportional to 15,319.80, 22,981.86 and 5,456.16 is: 8,185.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,319.80 : 22,981.86 = 5,456.16 : x
  2. Step 2: Convert to fraction form
    15,319.80/22,981.86 = 5,456.16/x
  3. Step 3: Cross multiply
    15,319.80x = 22,981.86 × 5,456.16
  4. Step 4: Simplify right side
    15,319.80x = 125,392,563.07
  5. Step 5: Solve for x
    x = 125,392,563.07/15,319.80
  6. Step 6: Final answer
    x = 8,185.00

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