Home / 11,511.40-17,270.73-4,115.70

Finding the Fourth Proportional to 11,511.40, 17,270.73 and 4,115.70

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Solution

The fourth proportional to 11,511.40, 17,270.73 and 4,115.70 is: 6,174.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.40 : 17,270.73 = 4,115.70 : x
  2. Step 2: Convert to fraction form
    11,511.40/17,270.73 = 4,115.70/x
  3. Step 3: Cross multiply
    11,511.40x = 17,270.73 × 4,115.70
  4. Step 4: Simplify right side
    11,511.40x = 71,081,143.46
  5. Step 5: Solve for x
    x = 71,081,143.46/11,511.40
  6. Step 6: Final answer
    x = 6,174.85

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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.