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Finding the Third Proportional to 7,998.75 and 12,656.25

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Solution

The third proportional to 7,998.75 and 12,656.25 is: 20,025.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.75 : 12,656.25 = 12,656.25 : x
  2. Step 2: Convert to fraction form
    7,998.75/12,656.25 = 12,656.25/x
  3. Step 3: Cross multiply
    7,998.75x = 12,656.25 × 12,656.25
  4. Step 4: Simplify right side
    7,998.75x = 160,180,664.06
  5. Step 5: Solve for x
    x = 160,180,664.06/7,998.75
  6. Step 6: Final answer
    x = 20,025.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.