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Finding the Third Proportional to 5,031 and 8,811

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Solution

The third proportional to 5,031 and 8,811 is: 15,431.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,031 : 8,811 = 8,811 : x
  2. Step 2: Convert to fraction form
    5,031/8,811 = 8,811/x
  3. Step 3: Cross multiply
    5,031x = 8,811 × 8,811
  4. Step 4: Simplify right side
    5,031x = 77,633,721
  5. Step 5: Solve for x
    x = 77,633,721/5,031
  6. Step 6: Final answer
    x = 15,431.07

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Why These Related Problems?

These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.