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Finding the Fourth Proportional to 8,709.93, 12,016.80 and 4,932.72

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Solution

The fourth proportional to 8,709.93, 12,016.80 and 4,932.72 is: 6,805.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709.93 : 12,016.80 = 4,932.72 : x
  2. Step 2: Convert to fraction form
    8,709.93/12,016.80 = 4,932.72/x
  3. Step 3: Cross multiply
    8,709.93x = 12,016.80 × 4,932.72
  4. Step 4: Simplify right side
    8,709.93x = 59,275,509.70
  5. Step 5: Solve for x
    x = 59,275,509.70/8,709.93
  6. Step 6: Final answer
    x = 6,805.51

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