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Finding the Fourth Proportional to 16,831.85, 25,252.09 and 5,145.03

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Solution

The fourth proportional to 16,831.85, 25,252.09 and 5,145.03 is: 7,718.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,831.85 : 25,252.09 = 5,145.03 : x
  2. Step 2: Convert to fraction form
    16,831.85/25,252.09 = 5,145.03/x
  3. Step 3: Cross multiply
    16,831.85x = 25,252.09 × 5,145.03
  4. Step 4: Simplify right side
    16,831.85x = 129,922,747.75
  5. Step 5: Solve for x
    x = 129,922,747.75/16,831.85
  6. Step 6: Final answer
    x = 7,718.87

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