Home / 7,850.12-11,763.66-3,949.16

Finding the Fourth Proportional to 7,850.12, 11,763.66 and 3,949.16

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Solution

The fourth proportional to 7,850.12, 11,763.66 and 3,949.16 is: 5,917.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,850.12 : 11,763.66 = 3,949.16 : x
  2. Step 2: Convert to fraction form
    7,850.12/11,763.66 = 3,949.16/x
  3. Step 3: Cross multiply
    7,850.12x = 11,763.66 × 3,949.16
  4. Step 4: Simplify right side
    7,850.12x = 46,456,575.53
  5. Step 5: Solve for x
    x = 46,456,575.53/7,850.12
  6. Step 6: Final answer
    x = 5,917.94

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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.