Home / 7,279.33-10,918.99-5,811.61

Finding the Fourth Proportional to 7,279.33, 10,918.99 and 5,811.61

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Solution

The fourth proportional to 7,279.33, 10,918.99 and 5,811.61 is: 8,717.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.33 : 10,918.99 = 5,811.61 : x
  2. Step 2: Convert to fraction form
    7,279.33/10,918.99 = 5,811.61/x
  3. Step 3: Cross multiply
    7,279.33x = 10,918.99 × 5,811.61
  4. Step 4: Simplify right side
    7,279.33x = 63,456,869.65
  5. Step 5: Solve for x
    x = 63,456,869.65/7,279.33
  6. Step 6: Final answer
    x = 8,717.41

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Double scale
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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.