Home / 7,940.12-11,912.14-5,604.70

Finding the Fourth Proportional to 7,940.12, 11,912.14 and 5,604.70

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Solution

The fourth proportional to 7,940.12, 11,912.14 and 5,604.70 is: 8,408.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.12 : 11,912.14 = 5,604.70 : x
  2. Step 2: Convert to fraction form
    7,940.12/11,912.14 = 5,604.70/x
  3. Step 3: Cross multiply
    7,940.12x = 11,912.14 × 5,604.70
  4. Step 4: Simplify right side
    7,940.12x = 66,763,998.70
  5. Step 5: Solve for x
    x = 66,763,998.70/7,940.12
  6. Step 6: Final answer
    x = 8,408.44

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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.