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Finding the Third Proportional to 7,281 and 9,831

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Solution

The third proportional to 7,281 and 9,831 is: 13,274.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281 : 9,831 = 9,831 : x
  2. Step 2: Convert to fraction form
    7,281/9,831 = 9,831/x
  3. Step 3: Cross multiply
    7,281x = 9,831 × 9,831
  4. Step 4: Simplify right side
    7,281x = 96,648,561
  5. Step 5: Solve for x
    x = 96,648,561/7,281
  6. Step 6: Final answer
    x = 13,274.08

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.