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Finding the Third Proportional to 7,478.26 and 11,577.97

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Solution

The third proportional to 7,478.26 and 11,577.97 is: 17,925.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.26 : 11,577.97 = 11,577.97 : x
  2. Step 2: Convert to fraction form
    7,478.26/11,577.97 = 11,577.97/x
  3. Step 3: Cross multiply
    7,478.26x = 11,577.97 × 11,577.97
  4. Step 4: Simplify right side
    7,478.26x = 134,049,450.83
  5. Step 5: Solve for x
    x = 134,049,450.83/7,478.26
  6. Step 6: Final answer
    x = 17,925.22

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.