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Finding the Third Proportional to 4,312 and 8,876

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Solution

The third proportional to 4,312 and 8,876 is: 18,270.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,312 : 8,876 = 8,876 : x
  2. Step 2: Convert to fraction form
    4,312/8,876 = 8,876/x
  3. Step 3: Cross multiply
    4,312x = 8,876 × 8,876
  4. Step 4: Simplify right side
    4,312x = 78,783,376
  5. Step 5: Solve for x
    x = 78,783,376/4,312
  6. Step 6: Final answer
    x = 18,270.73

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.