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Finding the Third Proportional to 4,249.78 and 9,205.78

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Solution

The third proportional to 4,249.78 and 9,205.78 is: 19,941.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,249.78 : 9,205.78 = 9,205.78 : x
  2. Step 2: Convert to fraction form
    4,249.78/9,205.78 = 9,205.78/x
  3. Step 3: Cross multiply
    4,249.78x = 9,205.78 × 9,205.78
  4. Step 4: Simplify right side
    4,249.78x = 84,746,408.42
  5. Step 5: Solve for x
    x = 84,746,408.42/4,249.78
  6. Step 6: Final answer
    x = 19,941.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.