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Finding the Fourth Proportional to 8,819.97, 13,229.15 and 2,976.63

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Solution

The fourth proportional to 8,819.97, 13,229.15 and 2,976.63 is: 4,464.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.97 : 13,229.15 = 2,976.63 : x
  2. Step 2: Convert to fraction form
    8,819.97/13,229.15 = 2,976.63/x
  3. Step 3: Cross multiply
    8,819.97x = 13,229.15 × 2,976.63
  4. Step 4: Simplify right side
    8,819.97x = 39,378,284.76
  5. Step 5: Solve for x
    x = 39,378,284.76/8,819.97
  6. Step 6: Final answer
    x = 4,464.67

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