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Finding the Fourth Proportional to 6,463.88, 8,936.72 and 4,976.72

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Solution

The fourth proportional to 6,463.88, 8,936.72 and 4,976.72 is: 6,880.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,463.88 : 8,936.72 = 4,976.72 : x
  2. Step 2: Convert to fraction form
    6,463.88/8,936.72 = 4,976.72/x
  3. Step 3: Cross multiply
    6,463.88x = 8,936.72 × 4,976.72
  4. Step 4: Simplify right side
    6,463.88x = 44,475,553.16
  5. Step 5: Solve for x
    x = 44,475,553.16/6,463.88
  6. Step 6: Final answer
    x = 6,880.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.