Home / 11,163.28-15,399.72-7,626.64

Finding the Fourth Proportional to 11,163.28, 15,399.72 and 7,626.64

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Solution

The fourth proportional to 11,163.28, 15,399.72 and 7,626.64 is: 10,520.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.28 : 15,399.72 = 7,626.64 : x
  2. Step 2: Convert to fraction form
    11,163.28/15,399.72 = 7,626.64/x
  3. Step 3: Cross multiply
    11,163.28x = 15,399.72 × 7,626.64
  4. Step 4: Simplify right side
    11,163.28x = 117,448,120.54
  5. Step 5: Solve for x
    x = 117,448,120.54/11,163.28
  6. Step 6: Final answer
    x = 10,520.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.