Home / 8,135.42-12,206.34-3,456.44

Finding the Fourth Proportional to 8,135.42, 12,206.34 and 3,456.44

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Solution

The fourth proportional to 8,135.42, 12,206.34 and 3,456.44 is: 5,186.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.42 : 12,206.34 = 3,456.44 : x
  2. Step 2: Convert to fraction form
    8,135.42/12,206.34 = 3,456.44/x
  3. Step 3: Cross multiply
    8,135.42x = 12,206.34 × 3,456.44
  4. Step 4: Simplify right side
    8,135.42x = 42,190,481.83
  5. Step 5: Solve for x
    x = 42,190,481.83/8,135.42
  6. Step 6: Final answer
    x = 5,186.02

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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.