Home / 11,512.82-17,291.10-7,160.68

Finding the Fourth Proportional to 11,512.82, 17,291.10 and 7,160.68

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Solution

The fourth proportional to 11,512.82, 17,291.10 and 7,160.68 is: 10,754.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,512.82 : 17,291.10 = 7,160.68 : x
  2. Step 2: Convert to fraction form
    11,512.82/17,291.10 = 7,160.68/x
  3. Step 3: Cross multiply
    11,512.82x = 17,291.10 × 7,160.68
  4. Step 4: Simplify right side
    11,512.82x = 123,816,033.95
  5. Step 5: Solve for x
    x = 123,816,033.95/11,512.82
  6. Step 6: Final answer
    x = 10,754.62

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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.