Home / 11,511.55-17,267.32-7,615.04

Finding the Fourth Proportional to 11,511.55, 17,267.32 and 7,615.04

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Solution

The fourth proportional to 11,511.55, 17,267.32 and 7,615.04 is: 11,422.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.55 : 17,267.32 = 7,615.04 : x
  2. Step 2: Convert to fraction form
    11,511.55/17,267.32 = 7,615.04/x
  3. Step 3: Cross multiply
    11,511.55x = 17,267.32 × 7,615.04
  4. Step 4: Simplify right side
    11,511.55x = 131,491,375.66
  5. Step 5: Solve for x
    x = 131,491,375.66/11,511.55
  6. Step 6: Final answer
    x = 11,422.56

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Double scale
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Similar ratio
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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.