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Finding the Third Proportional to 8,764.50 and 13,579

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Solution

The third proportional to 8,764.50 and 13,579 is: 21,038.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764.50 : 13,579 = 13,579 : x
  2. Step 2: Convert to fraction form
    8,764.50/13,579 = 13,579/x
  3. Step 3: Cross multiply
    8,764.50x = 13,579 × 13,579
  4. Step 4: Simplify right side
    8,764.50x = 184,389,241
  5. Step 5: Solve for x
    x = 184,389,241/8,764.50
  6. Step 6: Final answer
    x = 21,038.19

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.