Home / 7,960.56-11,938.68-2,765.76

Finding the Fourth Proportional to 7,960.56, 11,938.68 and 2,765.76

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Solution

The fourth proportional to 7,960.56, 11,938.68 and 2,765.76 is: 4,147.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,960.56 : 11,938.68 = 2,765.76 : x
  2. Step 2: Convert to fraction form
    7,960.56/11,938.68 = 2,765.76/x
  3. Step 3: Cross multiply
    7,960.56x = 11,938.68 × 2,765.76
  4. Step 4: Simplify right side
    7,960.56x = 33,019,523.60
  5. Step 5: Solve for x
    x = 33,019,523.60/7,960.56
  6. Step 6: Final answer
    x = 4,147.89

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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.