Home / 8,108.36-12,157.41-3,425.96

Finding the Fourth Proportional to 8,108.36, 12,157.41 and 3,425.96

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Solution

The fourth proportional to 8,108.36, 12,157.41 and 3,425.96 is: 5,136.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.36 : 12,157.41 = 3,425.96 : x
  2. Step 2: Convert to fraction form
    8,108.36/12,157.41 = 3,425.96/x
  3. Step 3: Cross multiply
    8,108.36x = 12,157.41 × 3,425.96
  4. Step 4: Simplify right side
    8,108.36x = 41,650,800.36
  5. Step 5: Solve for x
    x = 41,650,800.36/8,108.36
  6. Step 6: Final answer
    x = 5,136.77

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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.