Home / 7,515.72-11,265.66-3,611.88

Finding the Fourth Proportional to 7,515.72, 11,265.66 and 3,611.88

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Solution

The fourth proportional to 7,515.72, 11,265.66 and 3,611.88 is: 5,414.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.72 : 11,265.66 = 3,611.88 : x
  2. Step 2: Convert to fraction form
    7,515.72/11,265.66 = 3,611.88/x
  3. Step 3: Cross multiply
    7,515.72x = 11,265.66 × 3,611.88
  4. Step 4: Simplify right side
    7,515.72x = 40,690,212.04
  5. Step 5: Solve for x
    x = 40,690,212.04/7,515.72
  6. Step 6: Final answer
    x = 5,414.01

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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.