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Finding the Third Proportional to 7,657 and 11,485

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Solution

The third proportional to 7,657 and 11,485 is: 17,226.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,657 : 11,485 = 11,485 : x
  2. Step 2: Convert to fraction form
    7,657/11,485 = 11,485/x
  3. Step 3: Cross multiply
    7,657x = 11,485 × 11,485
  4. Step 4: Simplify right side
    7,657x = 131,905,225
  5. Step 5: Solve for x
    x = 131,905,225/7,657
  6. Step 6: Final answer
    x = 17,226.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.