Home / 7,947.05-11,920.57-4,238.04

Finding the Fourth Proportional to 7,947.05, 11,920.57 and 4,238.04

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Solution

The fourth proportional to 7,947.05, 11,920.57 and 4,238.04 is: 6,357.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.05 : 11,920.57 = 4,238.04 : x
  2. Step 2: Convert to fraction form
    7,947.05/11,920.57 = 4,238.04/x
  3. Step 3: Cross multiply
    7,947.05x = 11,920.57 × 4,238.04
  4. Step 4: Simplify right side
    7,947.05x = 50,519,819.54
  5. Step 5: Solve for x
    x = 50,519,819.54/7,947.05
  6. Step 6: Final answer
    x = 6,357.06

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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.