Home / 8,128.22-12,194.37-3,748.75

Finding the Fourth Proportional to 8,128.22, 12,194.37 and 3,748.75

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Solution

The fourth proportional to 8,128.22, 12,194.37 and 3,748.75 is: 5,624.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.22 : 12,194.37 = 3,748.75 : x
  2. Step 2: Convert to fraction form
    8,128.22/12,194.37 = 3,748.75/x
  3. Step 3: Cross multiply
    8,128.22x = 12,194.37 × 3,748.75
  4. Step 4: Simplify right side
    8,128.22x = 45,713,614.05
  5. Step 5: Solve for x
    x = 45,713,614.05/8,128.22
  6. Step 6: Final answer
    x = 5,624.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.