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Finding the Third Proportional to 8,468 and 13,480

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Solution

The third proportional to 8,468 and 13,480 is: 21,458.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,468 : 13,480 = 13,480 : x
  2. Step 2: Convert to fraction form
    8,468/13,480 = 13,480/x
  3. Step 3: Cross multiply
    8,468x = 13,480 × 13,480
  4. Step 4: Simplify right side
    8,468x = 181,710,400
  5. Step 5: Solve for x
    x = 181,710,400/8,468
  6. Step 6: Final answer
    x = 21,458.48

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.