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Finding the Third Proportional to 6,916 and 13,480

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Solution

The third proportional to 6,916 and 13,480 is: 26,273.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,916 : 13,480 = 13,480 : x
  2. Step 2: Convert to fraction form
    6,916/13,480 = 13,480/x
  3. Step 3: Cross multiply
    6,916x = 13,480 × 13,480
  4. Step 4: Simplify right side
    6,916x = 181,710,400
  5. Step 5: Solve for x
    x = 181,710,400/6,916
  6. Step 6: Final answer
    x = 26,273.92

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.