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Finding the Fourth Proportional to 7,993.63, 11,992.47 and 2,799.37

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Solution

The fourth proportional to 7,993.63, 11,992.47 and 2,799.37 is: 4,199.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.63 : 11,992.47 = 2,799.37 : x
  2. Step 2: Convert to fraction form
    7,993.63/11,992.47 = 2,799.37/x
  3. Step 3: Cross multiply
    7,993.63x = 11,992.47 × 2,799.37
  4. Step 4: Simplify right side
    7,993.63x = 33,571,360.74
  5. Step 5: Solve for x
    x = 33,571,360.74/7,993.63
  6. Step 6: Final answer
    x = 4,199.76

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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.