Home / 11,760.24-17,640.44-3,969.12

Finding the Fourth Proportional to 11,760.24, 17,640.44 and 3,969.12

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Solution

The fourth proportional to 11,760.24, 17,640.44 and 3,969.12 is: 5,953.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,760.24 : 17,640.44 = 3,969.12 : x
  2. Step 2: Convert to fraction form
    11,760.24/17,640.44 = 3,969.12/x
  3. Step 3: Cross multiply
    11,760.24x = 17,640.44 × 3,969.12
  4. Step 4: Simplify right side
    11,760.24x = 70,017,023.21
  5. Step 5: Solve for x
    x = 70,017,023.21/11,760.24
  6. Step 6: Final answer
    x = 5,953.71

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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.