Home / 8,170.82-12,253.46-2,905.59

Finding the Fourth Proportional to 8,170.82, 12,253.46 and 2,905.59

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Solution

The fourth proportional to 8,170.82, 12,253.46 and 2,905.59 is: 4,357.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.82 : 12,253.46 = 2,905.59 : x
  2. Step 2: Convert to fraction form
    8,170.82/12,253.46 = 2,905.59/x
  3. Step 3: Cross multiply
    8,170.82x = 12,253.46 × 2,905.59
  4. Step 4: Simplify right side
    8,170.82x = 35,603,516.31
  5. Step 5: Solve for x
    x = 35,603,516.31/8,170.82
  6. Step 6: Final answer
    x = 4,357.40

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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.