Home / 8,119.24-12,178.40-2,196.04

Finding the Fourth Proportional to 8,119.24, 12,178.40 and 2,196.04

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Solution

The fourth proportional to 8,119.24, 12,178.40 and 2,196.04 is: 3,293.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.24 : 12,178.40 = 2,196.04 : x
  2. Step 2: Convert to fraction form
    8,119.24/12,178.40 = 2,196.04/x
  3. Step 3: Cross multiply
    8,119.24x = 12,178.40 × 2,196.04
  4. Step 4: Simplify right side
    8,119.24x = 26,744,253.54
  5. Step 5: Solve for x
    x = 26,744,253.54/8,119.24
  6. Step 6: Final answer
    x = 3,293.94

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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.