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Finding the Third Proportional to 7,270 and 11,191

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Solution

The third proportional to 7,270 and 11,191 is: 17,226.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,270 : 11,191 = 11,191 : x
  2. Step 2: Convert to fraction form
    7,270/11,191 = 11,191/x
  3. Step 3: Cross multiply
    7,270x = 11,191 × 11,191
  4. Step 4: Simplify right side
    7,270x = 125,238,481
  5. Step 5: Solve for x
    x = 125,238,481/7,270
  6. Step 6: Final answer
    x = 17,226.75

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.