Home / 8,149.51-12,228.32-3,222.69

Finding the Fourth Proportional to 8,149.51, 12,228.32 and 3,222.69

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Solution

The fourth proportional to 8,149.51, 12,228.32 and 3,222.69 is: 4,835.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,149.51 : 12,228.32 = 3,222.69 : x
  2. Step 2: Convert to fraction form
    8,149.51/12,228.32 = 3,222.69/x
  3. Step 3: Cross multiply
    8,149.51x = 12,228.32 × 3,222.69
  4. Step 4: Simplify right side
    8,149.51x = 39,408,084.58
  5. Step 5: Solve for x
    x = 39,408,084.58/8,149.51
  6. Step 6: Final answer
    x = 4,835.64

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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.