Home / 7,515.21-11,272.27-3,355.59

Finding the Fourth Proportional to 7,515.21, 11,272.27 and 3,355.59

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Solution

The fourth proportional to 7,515.21, 11,272.27 and 3,355.59 is: 5,033.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.21 : 11,272.27 = 3,355.59 : x
  2. Step 2: Convert to fraction form
    7,515.21/11,272.27 = 3,355.59/x
  3. Step 3: Cross multiply
    7,515.21x = 11,272.27 × 3,355.59
  4. Step 4: Simplify right side
    7,515.21x = 37,825,116.49
  5. Step 5: Solve for x
    x = 37,825,116.49/7,515.21
  6. Step 6: Final answer
    x = 5,033.14

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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.