Home / 6,099.80-9,149.70-5,115.65

Finding the Fourth Proportional to 6,099.80, 9,149.70 and 5,115.65

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Solution

The fourth proportional to 6,099.80, 9,149.70 and 5,115.65 is: 7,673.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,099.80 : 9,149.70 = 5,115.65 : x
  2. Step 2: Convert to fraction form
    6,099.80/9,149.70 = 5,115.65/x
  3. Step 3: Cross multiply
    6,099.80x = 9,149.70 × 5,115.65
  4. Step 4: Simplify right side
    6,099.80x = 46,806,662.81
  5. Step 5: Solve for x
    x = 46,806,662.81/6,099.80
  6. Step 6: Final answer
    x = 7,673.48

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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.