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Finding the Third Proportional to 11,572 and 15,662

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Solution

The third proportional to 11,572 and 15,662 is: 21,197.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,572 : 15,662 = 15,662 : x
  2. Step 2: Convert to fraction form
    11,572/15,662 = 15,662/x
  3. Step 3: Cross multiply
    11,572x = 15,662 × 15,662
  4. Step 4: Simplify right side
    11,572x = 245,298,244
  5. Step 5: Solve for x
    x = 245,298,244/11,572
  6. Step 6: Final answer
    x = 21,197.57

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.