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Finding the Fourth Proportional to 10,978.97, 16,454.66 and 4,731.67

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Solution

The fourth proportional to 10,978.97, 16,454.66 and 4,731.67 is: 7,091.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,978.97 : 16,454.66 = 4,731.67 : x
  2. Step 2: Convert to fraction form
    10,978.97/16,454.66 = 4,731.67/x
  3. Step 3: Cross multiply
    10,978.97x = 16,454.66 × 4,731.67
  4. Step 4: Simplify right side
    10,978.97x = 77,857,952.05
  5. Step 5: Solve for x
    x = 77,857,952.05/10,978.97
  6. Step 6: Final answer
    x = 7,091.56

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