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Finding the Third Proportional to 6,392 and 11,416

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Solution

The third proportional to 6,392 and 11,416 is: 20,388.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,392 : 11,416 = 11,416 : x
  2. Step 2: Convert to fraction form
    6,392/11,416 = 11,416/x
  3. Step 3: Cross multiply
    6,392x = 11,416 × 11,416
  4. Step 4: Simplify right side
    6,392x = 130,325,056
  5. Step 5: Solve for x
    x = 130,325,056/6,392
  6. Step 6: Final answer
    x = 20,388.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.