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Finding the Third Proportional to 6,243 and 12,711

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Solution

The third proportional to 6,243 and 12,711 is: 25,880.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,243 : 12,711 = 12,711 : x
  2. Step 2: Convert to fraction form
    6,243/12,711 = 12,711/x
  3. Step 3: Cross multiply
    6,243x = 12,711 × 12,711
  4. Step 4: Simplify right side
    6,243x = 161,569,521
  5. Step 5: Solve for x
    x = 161,569,521/6,243
  6. Step 6: Final answer
    x = 25,880.11

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.