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Finding the Third Proportional to 7,180 and 15,458

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Solution

The third proportional to 7,180 and 15,458 is: 33,279.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180 : 15,458 = 15,458 : x
  2. Step 2: Convert to fraction form
    7,180/15,458 = 15,458/x
  3. Step 3: Cross multiply
    7,180x = 15,458 × 15,458
  4. Step 4: Simplify right side
    7,180x = 238,949,764
  5. Step 5: Solve for x
    x = 238,949,764/7,180
  6. Step 6: Final answer
    x = 33,279.91

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.