Home / 7,912.06-10,918.52-4,375.20

Finding the Fourth Proportional to 7,912.06, 10,918.52 and 4,375.20

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Solution

The fourth proportional to 7,912.06, 10,918.52 and 4,375.20 is: 6,037.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.06 : 10,918.52 = 4,375.20 : x
  2. Step 2: Convert to fraction form
    7,912.06/10,918.52 = 4,375.20/x
  3. Step 3: Cross multiply
    7,912.06x = 10,918.52 × 4,375.20
  4. Step 4: Simplify right side
    7,912.06x = 47,770,708.70
  5. Step 5: Solve for x
    x = 47,770,708.70/7,912.06
  6. Step 6: Final answer
    x = 6,037.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.