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Finding the Third Proportional to 8,520.19 and 18,988.17

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Solution

The third proportional to 8,520.19 and 18,988.17 is: 42,317.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.19 : 18,988.17 = 18,988.17 : x
  2. Step 2: Convert to fraction form
    8,520.19/18,988.17 = 18,988.17/x
  3. Step 3: Cross multiply
    8,520.19x = 18,988.17 × 18,988.17
  4. Step 4: Simplify right side
    8,520.19x = 360,550,671.15
  5. Step 5: Solve for x
    x = 360,550,671.15/8,520.19
  6. Step 6: Final answer
    x = 42,317.22

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.