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Finding the Third Proportional to 8,817 and 12,984

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Solution

The third proportional to 8,817 and 12,984 is: 19,120.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,817 : 12,984 = 12,984 : x
  2. Step 2: Convert to fraction form
    8,817/12,984 = 12,984/x
  3. Step 3: Cross multiply
    8,817x = 12,984 × 12,984
  4. Step 4: Simplify right side
    8,817x = 168,584,256
  5. Step 5: Solve for x
    x = 168,584,256/8,817
  6. Step 6: Final answer
    x = 19,120.36

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.