Home / 7,912.41-10,918.67-4,375.39

Finding the Fourth Proportional to 7,912.41, 10,918.67 and 4,375.39

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Solution

The fourth proportional to 7,912.41, 10,918.67 and 4,375.39 is: 6,037.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.41 : 10,918.67 = 4,375.39 : x
  2. Step 2: Convert to fraction form
    7,912.41/10,918.67 = 4,375.39/x
  3. Step 3: Cross multiply
    7,912.41x = 10,918.67 × 4,375.39
  4. Step 4: Simplify right side
    7,912.41x = 47,773,439.53
  5. Step 5: Solve for x
    x = 47,773,439.53/7,912.41
  6. Step 6: Final answer
    x = 6,037.79

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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.