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Finding the Third Proportional to 8,712.56 and 20,619.56

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Solution

The third proportional to 8,712.56 and 20,619.56 is: 48,799.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.56 : 20,619.56 = 20,619.56 : x
  2. Step 2: Convert to fraction form
    8,712.56/20,619.56 = 20,619.56/x
  3. Step 3: Cross multiply
    8,712.56x = 20,619.56 × 20,619.56
  4. Step 4: Simplify right side
    8,712.56x = 425,166,357.69
  5. Step 5: Solve for x
    x = 425,166,357.69/8,712.56
  6. Step 6: Final answer
    x = 48,799.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.