Home / 8,021.75-12,022.59-3,860.65

Finding the Fourth Proportional to 8,021.75, 12,022.59 and 3,860.65

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Solution

The fourth proportional to 8,021.75, 12,022.59 and 3,860.65 is: 5,786.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,021.75 : 12,022.59 = 3,860.65 : x
  2. Step 2: Convert to fraction form
    8,021.75/12,022.59 = 3,860.65/x
  3. Step 3: Cross multiply
    8,021.75x = 12,022.59 × 3,860.65
  4. Step 4: Simplify right side
    8,021.75x = 46,414,973.96
  5. Step 5: Solve for x
    x = 46,414,973.96/8,021.75
  6. Step 6: Final answer
    x = 5,786.14

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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.