Home / 8,515.44-11,747.68-4,879.56

Finding the Fourth Proportional to 8,515.44, 11,747.68 and 4,879.56

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Solution

The fourth proportional to 8,515.44, 11,747.68 and 4,879.56 is: 6,731.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.44 : 11,747.68 = 4,879.56 : x
  2. Step 2: Convert to fraction form
    8,515.44/11,747.68 = 4,879.56/x
  3. Step 3: Cross multiply
    8,515.44x = 11,747.68 × 4,879.56
  4. Step 4: Simplify right side
    8,515.44x = 57,323,509.42
  5. Step 5: Solve for x
    x = 57,323,509.42/8,515.44
  6. Step 6: Final answer
    x = 6,731.71

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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.