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Finding the Third Proportional to 7,180.50 and 9,699

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Solution

The third proportional to 7,180.50 and 9,699 is: 13,100.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.50 : 9,699 = 9,699 : x
  2. Step 2: Convert to fraction form
    7,180.50/9,699 = 9,699/x
  3. Step 3: Cross multiply
    7,180.50x = 9,699 × 9,699
  4. Step 4: Simplify right side
    7,180.50x = 94,070,601
  5. Step 5: Solve for x
    x = 94,070,601/7,180.50
  6. Step 6: Final answer
    x = 13,100.84

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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.