Home / 7,839.82-11,757.36-3,158.32

Finding the Fourth Proportional to 7,839.82, 11,757.36 and 3,158.32

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Solution

The fourth proportional to 7,839.82, 11,757.36 and 3,158.32 is: 4,736.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.82 : 11,757.36 = 3,158.32 : x
  2. Step 2: Convert to fraction form
    7,839.82/11,757.36 = 3,158.32/x
  3. Step 3: Cross multiply
    7,839.82x = 11,757.36 × 3,158.32
  4. Step 4: Simplify right side
    7,839.82x = 37,133,505.24
  5. Step 5: Solve for x
    x = 37,133,505.24/7,839.82
  6. Step 6: Final answer
    x = 4,736.53

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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.