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Finding the Third Proportional to 6,340 and 12,776

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Solution

The third proportional to 6,340 and 12,776 is: 25,745.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,340 : 12,776 = 12,776 : x
  2. Step 2: Convert to fraction form
    6,340/12,776 = 12,776/x
  3. Step 3: Cross multiply
    6,340x = 12,776 × 12,776
  4. Step 4: Simplify right side
    6,340x = 163,226,176
  5. Step 5: Solve for x
    x = 163,226,176/6,340
  6. Step 6: Final answer
    x = 25,745.45

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.