Home / 8,148.96-12,221.15-3,150.18

Finding the Fourth Proportional to 8,148.96, 12,221.15 and 3,150.18

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Solution

The fourth proportional to 8,148.96, 12,221.15 and 3,150.18 is: 4,724.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.96 : 12,221.15 = 3,150.18 : x
  2. Step 2: Convert to fraction form
    8,148.96/12,221.15 = 3,150.18/x
  3. Step 3: Cross multiply
    8,148.96x = 12,221.15 × 3,150.18
  4. Step 4: Simplify right side
    8,148.96x = 38,498,806.56
  5. Step 5: Solve for x
    x = 38,498,806.56/8,148.96
  6. Step 6: Final answer
    x = 4,724.38

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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.