Home / 11,440.43-17,157.83-3,120.48

Finding the Fourth Proportional to 11,440.43, 17,157.83 and 3,120.48

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Solution

The fourth proportional to 11,440.43, 17,157.83 and 3,120.48 is: 4,679.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,440.43 : 17,157.83 = 3,120.48 : x
  2. Step 2: Convert to fraction form
    11,440.43/17,157.83 = 3,120.48/x
  3. Step 3: Cross multiply
    11,440.43x = 17,157.83 × 3,120.48
  4. Step 4: Simplify right side
    11,440.43x = 53,540,673.16
  5. Step 5: Solve for x
    x = 53,540,673.16/11,440.43
  6. Step 6: Final answer
    x = 4,679.95

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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.