Home / 7,515.10-11,279.97-3,622.24

Finding the Fourth Proportional to 7,515.10, 11,279.97 and 3,622.24

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Solution

The fourth proportional to 7,515.10, 11,279.97 and 3,622.24 is: 5,436.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.10 : 11,279.97 = 3,622.24 : x
  2. Step 2: Convert to fraction form
    7,515.10/11,279.97 = 3,622.24/x
  3. Step 3: Cross multiply
    7,515.10x = 11,279.97 × 3,622.24
  4. Step 4: Simplify right side
    7,515.10x = 40,858,758.53
  5. Step 5: Solve for x
    x = 40,858,758.53/7,515.10
  6. Step 6: Final answer
    x = 5,436.89

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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.