Home / 8,455.16-12,682.44-2,611.78

Finding the Fourth Proportional to 8,455.16, 12,682.44 and 2,611.78

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Solution

The fourth proportional to 8,455.16, 12,682.44 and 2,611.78 is: 3,917.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.16 : 12,682.44 = 2,611.78 : x
  2. Step 2: Convert to fraction form
    8,455.16/12,682.44 = 2,611.78/x
  3. Step 3: Cross multiply
    8,455.16x = 12,682.44 × 2,611.78
  4. Step 4: Simplify right side
    8,455.16x = 33,123,711.44
  5. Step 5: Solve for x
    x = 33,123,711.44/8,455.16
  6. Step 6: Final answer
    x = 3,917.57

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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.