Home / 8,179.68-11,288.33-4,643.22

Finding the Fourth Proportional to 8,179.68, 11,288.33 and 4,643.22

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Solution

The fourth proportional to 8,179.68, 11,288.33 and 4,643.22 is: 6,407.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.68 : 11,288.33 = 4,643.22 : x
  2. Step 2: Convert to fraction form
    8,179.68/11,288.33 = 4,643.22/x
  3. Step 3: Cross multiply
    8,179.68x = 11,288.33 × 4,643.22
  4. Step 4: Simplify right side
    8,179.68x = 52,414,236.15
  5. Step 5: Solve for x
    x = 52,414,236.15/8,179.68
  6. Step 6: Final answer
    x = 6,407.86

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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.