Home / 7,949.82-11,919.24-5,318.22

Finding the Fourth Proportional to 7,949.82, 11,919.24 and 5,318.22

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Solution

The fourth proportional to 7,949.82, 11,919.24 and 5,318.22 is: 7,973.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,949.82 : 11,919.24 = 5,318.22 : x
  2. Step 2: Convert to fraction form
    7,949.82/11,919.24 = 5,318.22/x
  3. Step 3: Cross multiply
    7,949.82x = 11,919.24 × 5,318.22
  4. Step 4: Simplify right side
    7,949.82x = 63,389,140.55
  5. Step 5: Solve for x
    x = 63,389,140.55/7,949.82
  6. Step 6: Final answer
    x = 7,973.66

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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.