Home / 8,108.37-11,179.42-5,271.68

Finding the Fourth Proportional to 8,108.37, 11,179.42 and 5,271.68

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Solution

The fourth proportional to 8,108.37, 11,179.42 and 5,271.68 is: 7,268.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.37 : 11,179.42 = 5,271.68 : x
  2. Step 2: Convert to fraction form
    8,108.37/11,179.42 = 5,271.68/x
  3. Step 3: Cross multiply
    8,108.37x = 11,179.42 × 5,271.68
  4. Step 4: Simplify right side
    8,108.37x = 58,934,339.59
  5. Step 5: Solve for x
    x = 58,934,339.59/8,108.37
  6. Step 6: Final answer
    x = 7,268.33

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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.