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Finding the Third Proportional to 7,629 and 11,841

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Solution

The third proportional to 7,629 and 11,841 is: 18,378.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629 : 11,841 = 11,841 : x
  2. Step 2: Convert to fraction form
    7,629/11,841 = 11,841/x
  3. Step 3: Cross multiply
    7,629x = 11,841 × 11,841
  4. Step 4: Simplify right side
    7,629x = 140,209,281
  5. Step 5: Solve for x
    x = 140,209,281/7,629
  6. Step 6: Final answer
    x = 18,378.46

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.