Home / 8,105.28-11,185.29-4,379.28

Finding the Fourth Proportional to 8,105.28, 11,185.29 and 4,379.28

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Solution

The fourth proportional to 8,105.28, 11,185.29 and 4,379.28 is: 6,043.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,105.28 : 11,185.29 = 4,379.28 : x
  2. Step 2: Convert to fraction form
    8,105.28/11,185.29 = 4,379.28/x
  3. Step 3: Cross multiply
    8,105.28x = 11,185.29 × 4,379.28
  4. Step 4: Simplify right side
    8,105.28x = 48,983,516.79
  5. Step 5: Solve for x
    x = 48,983,516.79/8,105.28
  6. Step 6: Final answer
    x = 6,043.41

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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.