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Finding the Third Proportional to 7,764 and 12,506

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Solution

The third proportional to 7,764 and 12,506 is: 20,144.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764 : 12,506 = 12,506 : x
  2. Step 2: Convert to fraction form
    7,764/12,506 = 12,506/x
  3. Step 3: Cross multiply
    7,764x = 12,506 × 12,506
  4. Step 4: Simplify right side
    7,764x = 156,400,036
  5. Step 5: Solve for x
    x = 156,400,036/7,764
  6. Step 6: Final answer
    x = 20,144.26

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.