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Finding the Third Proportional to 4,021 and 8,573

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Solution

The third proportional to 4,021 and 8,573 is: 18,278.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,021 : 8,573 = 8,573 : x
  2. Step 2: Convert to fraction form
    4,021/8,573 = 8,573/x
  3. Step 3: Cross multiply
    4,021x = 8,573 × 8,573
  4. Step 4: Simplify right side
    4,021x = 73,496,329
  5. Step 5: Solve for x
    x = 73,496,329/4,021
  6. Step 6: Final answer
    x = 18,278.12

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.