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Finding the Third Proportional to 5,662 and 12,620

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Solution

The third proportional to 5,662 and 12,620 is: 28,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,662 : 12,620 = 12,620 : x
  2. Step 2: Convert to fraction form
    5,662/12,620 = 12,620/x
  3. Step 3: Cross multiply
    5,662x = 12,620 × 12,620
  4. Step 4: Simplify right side
    5,662x = 159,264,400
  5. Step 5: Solve for x
    x = 159,264,400/5,662
  6. Step 6: Final answer
    x = 28,128.65

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.