Home / 8,091.28-11,169.41-5,440.22

Finding the Fourth Proportional to 8,091.28, 11,169.41 and 5,440.22

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Solution

The fourth proportional to 8,091.28, 11,169.41 and 5,440.22 is: 7,509.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,091.28 : 11,169.41 = 5,440.22 : x
  2. Step 2: Convert to fraction form
    8,091.28/11,169.41 = 5,440.22/x
  3. Step 3: Cross multiply
    8,091.28x = 11,169.41 × 5,440.22
  4. Step 4: Simplify right side
    8,091.28x = 60,764,047.67
  5. Step 5: Solve for x
    x = 60,764,047.67/8,091.28
  6. Step 6: Final answer
    x = 7,509.82

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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.