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Finding the Third Proportional to 9,863 and 20,557

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Solution

The third proportional to 9,863 and 20,557 is: 42,846.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,863 : 20,557 = 20,557 : x
  2. Step 2: Convert to fraction form
    9,863/20,557 = 20,557/x
  3. Step 3: Cross multiply
    9,863x = 20,557 × 20,557
  4. Step 4: Simplify right side
    9,863x = 422,590,249
  5. Step 5: Solve for x
    x = 422,590,249/9,863
  6. Step 6: Final answer
    x = 42,846.02

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.