Home / 11,789.40-17,685.85-3,892.75

Finding the Fourth Proportional to 11,789.40, 17,685.85 and 3,892.75

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Solution

The fourth proportional to 11,789.40, 17,685.85 and 3,892.75 is: 5,839.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,789.40 : 17,685.85 = 3,892.75 : x
  2. Step 2: Convert to fraction form
    11,789.40/17,685.85 = 3,892.75/x
  3. Step 3: Cross multiply
    11,789.40x = 17,685.85 × 3,892.75
  4. Step 4: Simplify right side
    11,789.40x = 68,846,536.12
  5. Step 5: Solve for x
    x = 68,846,536.12/11,789.40
  6. Step 6: Final answer
    x = 5,839.70

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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.