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Finding the Third Proportional to 6,920 and 12,712

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Solution

The third proportional to 6,920 and 12,712 is: 23,351.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,920 : 12,712 = 12,712 : x
  2. Step 2: Convert to fraction form
    6,920/12,712 = 12,712/x
  3. Step 3: Cross multiply
    6,920x = 12,712 × 12,712
  4. Step 4: Simplify right side
    6,920x = 161,594,944
  5. Step 5: Solve for x
    x = 161,594,944/6,920
  6. Step 6: Final answer
    x = 23,351.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.84) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.