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Finding the Fourth Proportional to 10,822.80, 16,241.40 and 4,976.40

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Solution

The fourth proportional to 10,822.80, 16,241.40 and 4,976.40 is: 7,467.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,822.80 : 16,241.40 = 4,976.40 : x
  2. Step 2: Convert to fraction form
    10,822.80/16,241.40 = 4,976.40/x
  3. Step 3: Cross multiply
    10,822.80x = 16,241.40 × 4,976.40
  4. Step 4: Simplify right side
    10,822.80x = 80,823,702.96
  5. Step 5: Solve for x
    x = 80,823,702.96/10,822.80
  6. Step 6: Final answer
    x = 7,467.91

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