Home / 8,161.12-11,260.37-5,175.86

Finding the Fourth Proportional to 8,161.12, 11,260.37 and 5,175.86

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Solution

The fourth proportional to 8,161.12, 11,260.37 and 5,175.86 is: 7,141.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,161.12 : 11,260.37 = 5,175.86 : x
  2. Step 2: Convert to fraction form
    8,161.12/11,260.37 = 5,175.86/x
  3. Step 3: Cross multiply
    8,161.12x = 11,260.37 × 5,175.86
  4. Step 4: Simplify right side
    8,161.12x = 58,282,138.12
  5. Step 5: Solve for x
    x = 58,282,138.12/8,161.12
  6. Step 6: Final answer
    x = 7,141.44

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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.