Home / 7,447.82-11,163.99-2,515.79

Finding the Fourth Proportional to 7,447.82, 11,163.99 and 2,515.79

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Solution

The fourth proportional to 7,447.82, 11,163.99 and 2,515.79 is: 3,771.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,447.82 : 11,163.99 = 2,515.79 : x
  2. Step 2: Convert to fraction form
    7,447.82/11,163.99 = 2,515.79/x
  3. Step 3: Cross multiply
    7,447.82x = 11,163.99 × 2,515.79
  4. Step 4: Simplify right side
    7,447.82x = 28,086,291.75
  5. Step 5: Solve for x
    x = 28,086,291.75/7,447.82
  6. Step 6: Final answer
    x = 3,771.08

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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.