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Finding the Third Proportional to 8,159 and 12,968

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Solution

The third proportional to 8,159 and 12,968 is: 20,611.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,159 : 12,968 = 12,968 : x
  2. Step 2: Convert to fraction form
    8,159/12,968 = 12,968/x
  3. Step 3: Cross multiply
    8,159x = 12,968 × 12,968
  4. Step 4: Simplify right side
    8,159x = 168,169,024
  5. Step 5: Solve for x
    x = 168,169,024/8,159
  6. Step 6: Final answer
    x = 20,611.47

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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.