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Finding the Fourth Proportional to 11,972.47, 17,961.02 and 4,074.67

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Solution

The fourth proportional to 11,972.47, 17,961.02 and 4,074.67 is: 6,112.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.47 : 17,961.02 = 4,074.67 : x
  2. Step 2: Convert to fraction form
    11,972.47/17,961.02 = 4,074.67/x
  3. Step 3: Cross multiply
    11,972.47x = 17,961.02 × 4,074.67
  4. Step 4: Simplify right side
    11,972.47x = 73,185,229.36
  5. Step 5: Solve for x
    x = 73,185,229.36/11,972.47
  6. Step 6: Final answer
    x = 6,112.79

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