Home / 7,892.75-11,846.42-3,999.89

Finding the Fourth Proportional to 7,892.75, 11,846.42 and 3,999.89

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Solution

The fourth proportional to 7,892.75, 11,846.42 and 3,999.89 is: 6,003.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,892.75 : 11,846.42 = 3,999.89 : x
  2. Step 2: Convert to fraction form
    7,892.75/11,846.42 = 3,999.89/x
  3. Step 3: Cross multiply
    7,892.75x = 11,846.42 × 3,999.89
  4. Step 4: Simplify right side
    7,892.75x = 47,384,297.66
  5. Step 5: Solve for x
    x = 47,384,297.66/7,892.75
  6. Step 6: Final answer
    x = 6,003.53

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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.