Home / 8,144.74-11,240.94-5,160.85

Finding the Fourth Proportional to 8,144.74, 11,240.94 and 5,160.85

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Solution

The fourth proportional to 8,144.74, 11,240.94 and 5,160.85 is: 7,122.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,144.74 : 11,240.94 = 5,160.85 : x
  2. Step 2: Convert to fraction form
    8,144.74/11,240.94 = 5,160.85/x
  3. Step 3: Cross multiply
    8,144.74x = 11,240.94 × 5,160.85
  4. Step 4: Simplify right side
    8,144.74x = 58,012,805.20
  5. Step 5: Solve for x
    x = 58,012,805.20/8,144.74
  6. Step 6: Final answer
    x = 7,122.73

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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.