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Finding the Third Proportional to 7,998.75 and 12,519.56

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Solution

The third proportional to 7,998.75 and 12,519.56 is: 19,595.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.75 : 12,519.56 = 12,519.56 : x
  2. Step 2: Convert to fraction form
    7,998.75/12,519.56 = 12,519.56/x
  3. Step 3: Cross multiply
    7,998.75x = 12,519.56 × 12,519.56
  4. Step 4: Simplify right side
    7,998.75x = 156,739,445.19
  5. Step 5: Solve for x
    x = 156,739,445.19/7,998.75
  6. Step 6: Final answer
    x = 19,595.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.