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Finding the Third Proportional to 7,387.88 and 9,684.56

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Solution

The third proportional to 7,387.88 and 9,684.56 is: 12,695.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,387.88 : 9,684.56 = 9,684.56 : x
  2. Step 2: Convert to fraction form
    7,387.88/9,684.56 = 9,684.56/x
  3. Step 3: Cross multiply
    7,387.88x = 9,684.56 × 9,684.56
  4. Step 4: Simplify right side
    7,387.88x = 93,790,750.82
  5. Step 5: Solve for x
    x = 93,790,750.82/7,387.88
  6. Step 6: Final answer
    x = 12,695.23

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.