Home / 8,106.68-12,162.96-3,179.69

Finding the Fourth Proportional to 8,106.68, 12,162.96 and 3,179.69

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Solution

The fourth proportional to 8,106.68, 12,162.96 and 3,179.69 is: 4,770.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.68 : 12,162.96 = 3,179.69 : x
  2. Step 2: Convert to fraction form
    8,106.68/12,162.96 = 3,179.69/x
  3. Step 3: Cross multiply
    8,106.68x = 12,162.96 × 3,179.69
  4. Step 4: Simplify right side
    8,106.68x = 38,674,427.08
  5. Step 5: Solve for x
    x = 38,674,427.08/8,106.68
  6. Step 6: Final answer
    x = 4,770.68

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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.