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Finding the Third Proportional to 7,018 and 9,821

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Solution

The third proportional to 7,018 and 9,821 is: 13,743.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018 : 9,821 = 9,821 : x
  2. Step 2: Convert to fraction form
    7,018/9,821 = 9,821/x
  3. Step 3: Cross multiply
    7,018x = 9,821 × 9,821
  4. Step 4: Simplify right side
    7,018x = 96,452,041
  5. Step 5: Solve for x
    x = 96,452,041/7,018
  6. Step 6: Final answer
    x = 13,743.52

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.