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Finding the Third Proportional to 7,208.72 and 15,495.09

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Solution

The third proportional to 7,208.72 and 15,495.09 is: 33,306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208.72 : 15,495.09 = 15,495.09 : x
  2. Step 2: Convert to fraction form
    7,208.72/15,495.09 = 15,495.09/x
  3. Step 3: Cross multiply
    7,208.72x = 15,495.09 × 15,495.09
  4. Step 4: Simplify right side
    7,208.72x = 240,097,930.32
  5. Step 5: Solve for x
    x = 240,097,930.32/7,208.72
  6. Step 6: Final answer
    x = 33,306.60

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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.