Home / 7,997.82-11,996.73-2,805.18

Finding the Fourth Proportional to 7,997.82, 11,996.73 and 2,805.18

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Solution

The fourth proportional to 7,997.82, 11,996.73 and 2,805.18 is: 4,207.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,997.82 : 11,996.73 = 2,805.18 : x
  2. Step 2: Convert to fraction form
    7,997.82/11,996.73 = 2,805.18/x
  3. Step 3: Cross multiply
    7,997.82x = 11,996.73 × 2,805.18
  4. Step 4: Simplify right side
    7,997.82x = 33,652,987.06
  5. Step 5: Solve for x
    x = 33,652,987.06/7,997.82
  6. Step 6: Final answer
    x = 4,207.77

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Half scale
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Double scale
Find fourth proportional to 7,998.82, 11,998.23 and 2,806.18
Similar ratio
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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.