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Finding the Fourth Proportional to 18,831.76, 28,227.92 and 6,347.48

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Solution

The fourth proportional to 18,831.76, 28,227.92 and 6,347.48 is: 9,514.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831.76 : 28,227.92 = 6,347.48 : x
  2. Step 2: Convert to fraction form
    18,831.76/28,227.92 = 6,347.48/x
  3. Step 3: Cross multiply
    18,831.76x = 28,227.92 × 6,347.48
  4. Step 4: Simplify right side
    18,831.76x = 179,176,157.64
  5. Step 5: Solve for x
    x = 179,176,157.64/18,831.76
  6. Step 6: Final answer
    x = 9,514.57

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