Home / 8,099.85-11,179.88-5,274.29

Finding the Fourth Proportional to 8,099.85, 11,179.88 and 5,274.29

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Solution

The fourth proportional to 8,099.85, 11,179.88 and 5,274.29 is: 7,279.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,099.85 : 11,179.88 = 5,274.29 : x
  2. Step 2: Convert to fraction form
    8,099.85/11,179.88 = 5,274.29/x
  3. Step 3: Cross multiply
    8,099.85x = 11,179.88 × 5,274.29
  4. Step 4: Simplify right side
    8,099.85x = 58,965,847.01
  5. Step 5: Solve for x
    x = 58,965,847.01/8,099.85
  6. Step 6: Final answer
    x = 7,279.87

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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.