Home / 11,515.12-17,272.68-3,724.54

Finding the Fourth Proportional to 11,515.12, 17,272.68 and 3,724.54

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Solution

The fourth proportional to 11,515.12, 17,272.68 and 3,724.54 is: 5,586.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,515.12 : 17,272.68 = 3,724.54 : x
  2. Step 2: Convert to fraction form
    11,515.12/17,272.68 = 3,724.54/x
  3. Step 3: Cross multiply
    11,515.12x = 17,272.68 × 3,724.54
  4. Step 4: Simplify right side
    11,515.12x = 64,332,787.57
  5. Step 5: Solve for x
    x = 64,332,787.57/11,515.12
  6. Step 6: Final answer
    x = 5,586.81

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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.