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Finding the Fourth Proportional to 7,993.49, 11,990.28 and 2,069.96

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Solution

The fourth proportional to 7,993.49, 11,990.28 and 2,069.96 is: 3,104.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.49 : 11,990.28 = 2,069.96 : x
  2. Step 2: Convert to fraction form
    7,993.49/11,990.28 = 2,069.96/x
  3. Step 3: Cross multiply
    7,993.49x = 11,990.28 × 2,069.96
  4. Step 4: Simplify right side
    7,993.49x = 24,819,429.96
  5. Step 5: Solve for x
    x = 24,819,429.96/7,993.49
  6. Step 6: Final answer
    x = 3,104.95

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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.