Home / 7,939.65-11,912.35-3,009.25

Finding the Fourth Proportional to 7,939.65, 11,912.35 and 3,009.25

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Solution

The fourth proportional to 7,939.65, 11,912.35 and 3,009.25 is: 4,514.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.65 : 11,912.35 = 3,009.25 : x
  2. Step 2: Convert to fraction form
    7,939.65/11,912.35 = 3,009.25/x
  3. Step 3: Cross multiply
    7,939.65x = 11,912.35 × 3,009.25
  4. Step 4: Simplify right side
    7,939.65x = 35,847,239.24
  5. Step 5: Solve for x
    x = 35,847,239.24/7,939.65
  6. Step 6: Final answer
    x = 4,514.96

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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.