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Finding the Third Proportional to 8,683.50 and 18,685

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Solution

The third proportional to 8,683.50 and 18,685 is: 40,206.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,683.50 : 18,685 = 18,685 : x
  2. Step 2: Convert to fraction form
    8,683.50/18,685 = 18,685/x
  3. Step 3: Cross multiply
    8,683.50x = 18,685 × 18,685
  4. Step 4: Simplify right side
    8,683.50x = 349,129,225
  5. Step 5: Solve for x
    x = 349,129,225/8,683.50
  6. Step 6: Final answer
    x = 40,206.05

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.