Home / 8,101.22-12,157.29-3,170.24

Finding the Fourth Proportional to 8,101.22, 12,157.29 and 3,170.24

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Solution

The fourth proportional to 8,101.22, 12,157.29 and 3,170.24 is: 4,757.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,101.22 : 12,157.29 = 3,170.24 : x
  2. Step 2: Convert to fraction form
    8,101.22/12,157.29 = 3,170.24/x
  3. Step 3: Cross multiply
    8,101.22x = 12,157.29 × 3,170.24
  4. Step 4: Simplify right side
    8,101.22x = 38,541,511.85
  5. Step 5: Solve for x
    x = 38,541,511.85/8,101.22
  6. Step 6: Final answer
    x = 4,757.50

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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.