Home / 7,998.76-11,040.29-5,169.33

Finding the Fourth Proportional to 7,998.76, 11,040.29 and 5,169.33

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Solution

The fourth proportional to 7,998.76, 11,040.29 and 5,169.33 is: 7,134.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.76 : 11,040.29 = 5,169.33 : x
  2. Step 2: Convert to fraction form
    7,998.76/11,040.29 = 5,169.33/x
  3. Step 3: Cross multiply
    7,998.76x = 11,040.29 × 5,169.33
  4. Step 4: Simplify right side
    7,998.76x = 57,070,902.31
  5. Step 5: Solve for x
    x = 57,070,902.31/7,998.76
  6. Step 6: Final answer
    x = 7,134.97

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.