Home / 8,108.09-12,163.58-2,770.98

Finding the Fourth Proportional to 8,108.09, 12,163.58 and 2,770.98

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Solution

The fourth proportional to 8,108.09, 12,163.58 and 2,770.98 is: 4,156.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.09 : 12,163.58 = 2,770.98 : x
  2. Step 2: Convert to fraction form
    8,108.09/12,163.58 = 2,770.98/x
  3. Step 3: Cross multiply
    8,108.09x = 12,163.58 × 2,770.98
  4. Step 4: Simplify right side
    8,108.09x = 33,705,036.91
  5. Step 5: Solve for x
    x = 33,705,036.91/8,108.09
  6. Step 6: Final answer
    x = 4,156.96

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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.