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Finding the Third Proportional to 6,387 and 6,963

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Solution

The third proportional to 6,387 and 6,963 is: 7,590.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387 : 6,963 = 6,963 : x
  2. Step 2: Convert to fraction form
    6,387/6,963 = 6,963/x
  3. Step 3: Cross multiply
    6,387x = 6,963 × 6,963
  4. Step 4: Simplify right side
    6,387x = 48,483,369
  5. Step 5: Solve for x
    x = 48,483,369/6,387
  6. Step 6: Final answer
    x = 7,590.95

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.