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Finding the Fourth Proportional to 7,997.39, 11,995.15 and 2,153.54

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Solution

The fourth proportional to 7,997.39, 11,995.15 and 2,153.54 is: 3,230.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,997.39 : 11,995.15 = 2,153.54 : x
  2. Step 2: Convert to fraction form
    7,997.39/11,995.15 = 2,153.54/x
  3. Step 3: Cross multiply
    7,997.39x = 11,995.15 × 2,153.54
  4. Step 4: Simplify right side
    7,997.39x = 25,832,035.33
  5. Step 5: Solve for x
    x = 25,832,035.33/7,997.39
  6. Step 6: Final answer
    x = 3,230.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.