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Finding the Third Proportional to 6,470 and 13,684

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Solution

The third proportional to 6,470 and 13,684 is: 28,941.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,470 : 13,684 = 13,684 : x
  2. Step 2: Convert to fraction form
    6,470/13,684 = 13,684/x
  3. Step 3: Cross multiply
    6,470x = 13,684 × 13,684
  4. Step 4: Simplify right side
    6,470x = 187,251,856
  5. Step 5: Solve for x
    x = 187,251,856/6,470
  6. Step 6: Final answer
    x = 28,941.55

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.