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Finding the Third Proportional to 4,557 and 9,811

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Solution

The third proportional to 4,557 and 9,811 is: 21,122.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,557 : 9,811 = 9,811 : x
  2. Step 2: Convert to fraction form
    4,557/9,811 = 9,811/x
  3. Step 3: Cross multiply
    4,557x = 9,811 × 9,811
  4. Step 4: Simplify right side
    4,557x = 96,255,721
  5. Step 5: Solve for x
    x = 96,255,721/4,557
  6. Step 6: Final answer
    x = 21,122.61

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.