Home / 7,989.62-11,986.19-2,443.39

Finding the Fourth Proportional to 7,989.62, 11,986.19 and 2,443.39

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Solution

The fourth proportional to 7,989.62, 11,986.19 and 2,443.39 is: 3,665.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.62 : 11,986.19 = 2,443.39 : x
  2. Step 2: Convert to fraction form
    7,989.62/11,986.19 = 2,443.39/x
  3. Step 3: Cross multiply
    7,989.62x = 11,986.19 × 2,443.39
  4. Step 4: Simplify right side
    7,989.62x = 29,286,936.78
  5. Step 5: Solve for x
    x = 29,286,936.78/7,989.62
  6. Step 6: Final answer
    x = 3,665.62

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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.