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Finding the Third Proportional to 12,200.63 and 15,450.75

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Solution

The third proportional to 12,200.63 and 15,450.75 is: 19,566.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200.63 : 15,450.75 = 15,450.75 : x
  2. Step 2: Convert to fraction form
    12,200.63/15,450.75 = 15,450.75/x
  3. Step 3: Cross multiply
    12,200.63x = 15,450.75 × 15,450.75
  4. Step 4: Simplify right side
    12,200.63x = 238,725,675.56
  5. Step 5: Solve for x
    x = 238,725,675.56/12,200.63
  6. Step 6: Final answer
    x = 19,566.68

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.