Home / 8,811.20-13,213.92-2,966.42

Finding the Fourth Proportional to 8,811.20, 13,213.92 and 2,966.42

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Solution

The fourth proportional to 8,811.20, 13,213.92 and 2,966.42 is: 4,448.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.20 : 13,213.92 = 2,966.42 : x
  2. Step 2: Convert to fraction form
    8,811.20/13,213.92 = 2,966.42/x
  3. Step 3: Cross multiply
    8,811.20x = 13,213.92 × 2,966.42
  4. Step 4: Simplify right side
    8,811.20x = 39,198,036.57
  5. Step 5: Solve for x
    x = 39,198,036.57/8,811.20
  6. Step 6: Final answer
    x = 4,448.66

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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.