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Finding the Fourth Proportional to 11,781.05, 16,258.79 and 6,746.86

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Solution

The fourth proportional to 11,781.05, 16,258.79 and 6,746.86 is: 9,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.05 : 16,258.79 = 6,746.86 : x
  2. Step 2: Convert to fraction form
    11,781.05/16,258.79 = 6,746.86/x
  3. Step 3: Cross multiply
    11,781.05x = 16,258.79 × 6,746.86
  4. Step 4: Simplify right side
    11,781.05x = 109,695,705.52
  5. Step 5: Solve for x
    x = 109,695,705.52/11,781.05
  6. Step 6: Final answer
    x = 9,311.20

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