Home / 8,127.96-12,190.85-3,196.27

Finding the Fourth Proportional to 8,127.96, 12,190.85 and 3,196.27

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Solution

The fourth proportional to 8,127.96, 12,190.85 and 3,196.27 is: 4,793.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.96 : 12,190.85 = 3,196.27 : x
  2. Step 2: Convert to fraction form
    8,127.96/12,190.85 = 3,196.27/x
  3. Step 3: Cross multiply
    8,127.96x = 12,190.85 × 3,196.27
  4. Step 4: Simplify right side
    8,127.96x = 38,965,248.13
  5. Step 5: Solve for x
    x = 38,965,248.13/8,127.96
  6. Step 6: Final answer
    x = 4,793.98

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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.