Home / 7,836.82-11,755.14-1,993.12

Finding the Fourth Proportional to 7,836.82, 11,755.14 and 1,993.12

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Solution

The fourth proportional to 7,836.82, 11,755.14 and 1,993.12 is: 2,989.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,836.82 : 11,755.14 = 1,993.12 : x
  2. Step 2: Convert to fraction form
    7,836.82/11,755.14 = 1,993.12/x
  3. Step 3: Cross multiply
    7,836.82x = 11,755.14 × 1,993.12
  4. Step 4: Simplify right side
    7,836.82x = 23,429,404.64
  5. Step 5: Solve for x
    x = 23,429,404.64/7,836.82
  6. Step 6: Final answer
    x = 2,989.66

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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.