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Finding the Third Proportional to 7,877 and 9,254

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Solution

The third proportional to 7,877 and 9,254 is: 10,871.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877 : 9,254 = 9,254 : x
  2. Step 2: Convert to fraction form
    7,877/9,254 = 9,254/x
  3. Step 3: Cross multiply
    7,877x = 9,254 × 9,254
  4. Step 4: Simplify right side
    7,877x = 85,636,516
  5. Step 5: Solve for x
    x = 85,636,516/7,877
  6. Step 6: Final answer
    x = 10,871.72

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Why These Related Problems?

These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.