Home / 7,439.64-11,153.99-3,546.78

Finding the Fourth Proportional to 7,439.64, 11,153.99 and 3,546.78

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Solution

The fourth proportional to 7,439.64, 11,153.99 and 3,546.78 is: 5,317.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439.64 : 11,153.99 = 3,546.78 : x
  2. Step 2: Convert to fraction form
    7,439.64/11,153.99 = 3,546.78/x
  3. Step 3: Cross multiply
    7,439.64x = 11,153.99 × 3,546.78
  4. Step 4: Simplify right side
    7,439.64x = 39,560,757.52
  5. Step 5: Solve for x
    x = 39,560,757.52/7,439.64
  6. Step 6: Final answer
    x = 5,317.56

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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.