Home / 11,783.88-17,679.12-3,993.28

Finding the Fourth Proportional to 11,783.88, 17,679.12 and 3,993.28

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Solution

The fourth proportional to 11,783.88, 17,679.12 and 3,993.28 is: 5,991.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,783.88 : 17,679.12 = 3,993.28 : x
  2. Step 2: Convert to fraction form
    11,783.88/17,679.12 = 3,993.28/x
  3. Step 3: Cross multiply
    11,783.88x = 17,679.12 × 3,993.28
  4. Step 4: Simplify right side
    11,783.88x = 70,597,676.31
  5. Step 5: Solve for x
    x = 70,597,676.31/11,783.88
  6. Step 6: Final answer
    x = 5,991.04

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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.