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Finding the Third Proportional to 6,543 and 8,557

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Solution

The third proportional to 6,543 and 8,557 is: 11,190.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,543 : 8,557 = 8,557 : x
  2. Step 2: Convert to fraction form
    6,543/8,557 = 8,557/x
  3. Step 3: Cross multiply
    6,543x = 8,557 × 8,557
  4. Step 4: Simplify right side
    6,543x = 73,222,249
  5. Step 5: Solve for x
    x = 73,222,249/6,543
  6. Step 6: Final answer
    x = 11,190.93

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.