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Finding the Third Proportional to 7,760.50 and 11,664.47

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Solution

The third proportional to 7,760.50 and 11,664.47 is: 17,532.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,760.50 : 11,664.47 = 11,664.47 : x
  2. Step 2: Convert to fraction form
    7,760.50/11,664.47 = 11,664.47/x
  3. Step 3: Cross multiply
    7,760.50x = 11,664.47 × 11,664.47
  4. Step 4: Simplify right side
    7,760.50x = 136,059,967.91
  5. Step 5: Solve for x
    x = 136,059,967.91/7,760.50
  6. Step 6: Final answer
    x = 17,532.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.