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Finding the Fourth Proportional to 8,546.88, 12,831.66 and 7,322.16

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Solution

The fourth proportional to 8,546.88, 12,831.66 and 7,322.16 is: 10,992.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,546.88 : 12,831.66 = 7,322.16 : x
  2. Step 2: Convert to fraction form
    8,546.88/12,831.66 = 7,322.16/x
  3. Step 3: Cross multiply
    8,546.88x = 12,831.66 × 7,322.16
  4. Step 4: Simplify right side
    8,546.88x = 93,955,467.59
  5. Step 5: Solve for x
    x = 93,955,467.59/8,546.88
  6. Step 6: Final answer
    x = 10,992.96

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