Home / 8,106.22-12,153.25-3,431.71

Finding the Fourth Proportional to 8,106.22, 12,153.25 and 3,431.71

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Solution

The fourth proportional to 8,106.22, 12,153.25 and 3,431.71 is: 5,144.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.22 : 12,153.25 = 3,431.71 : x
  2. Step 2: Convert to fraction form
    8,106.22/12,153.25 = 3,431.71/x
  3. Step 3: Cross multiply
    8,106.22x = 12,153.25 × 3,431.71
  4. Step 4: Simplify right side
    8,106.22x = 41,706,351.63
  5. Step 5: Solve for x
    x = 41,706,351.63/8,106.22
  6. Step 6: Final answer
    x = 5,144.98

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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.