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Finding the Third Proportional to 8,815 and 18,358.75

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Solution

The third proportional to 8,815 and 18,358.75 is: 38,235.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815 : 18,358.75 = 18,358.75 : x
  2. Step 2: Convert to fraction form
    8,815/18,358.75 = 18,358.75/x
  3. Step 3: Cross multiply
    8,815x = 18,358.75 × 18,358.75
  4. Step 4: Simplify right side
    8,815x = 337,043,701.56
  5. Step 5: Solve for x
    x = 337,043,701.56/8,815
  6. Step 6: Final answer
    x = 38,235.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.