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Finding the Third Proportional to 7,618.50 and 15,447

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Solution

The third proportional to 7,618.50 and 15,447 is: 31,319.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.50 : 15,447 = 15,447 : x
  2. Step 2: Convert to fraction form
    7,618.50/15,447 = 15,447/x
  3. Step 3: Cross multiply
    7,618.50x = 15,447 × 15,447
  4. Step 4: Simplify right side
    7,618.50x = 238,609,809
  5. Step 5: Solve for x
    x = 238,609,809/7,618.50
  6. Step 6: Final answer
    x = 31,319.79

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.