Home / 11,739.43-17,598.12-3,942.78

Finding the Fourth Proportional to 11,739.43, 17,598.12 and 3,942.78

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Solution

The fourth proportional to 11,739.43, 17,598.12 and 3,942.78 is: 5,910.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,739.43 : 17,598.12 = 3,942.78 : x
  2. Step 2: Convert to fraction form
    11,739.43/17,598.12 = 3,942.78/x
  3. Step 3: Cross multiply
    11,739.43x = 17,598.12 × 3,942.78
  4. Step 4: Simplify right side
    11,739.43x = 69,385,515.57
  5. Step 5: Solve for x
    x = 69,385,515.57/11,739.43
  6. Step 6: Final answer
    x = 5,910.47

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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.