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Finding the Fourth Proportional to 7,917.62, 11,873.19 and 2,984.78

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Solution

The fourth proportional to 7,917.62, 11,873.19 and 2,984.78 is: 4,475.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.62 : 11,873.19 = 2,984.78 : x
  2. Step 2: Convert to fraction form
    7,917.62/11,873.19 = 2,984.78/x
  3. Step 3: Cross multiply
    7,917.62x = 11,873.19 × 2,984.78
  4. Step 4: Simplify right side
    7,917.62x = 35,438,860.05
  5. Step 5: Solve for x
    x = 35,438,860.05/7,917.62
  6. Step 6: Final answer
    x = 4,475.95

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