Home / 17,791.20-26,662.68-8,429.76

Finding the Fourth Proportional to 17,791.20, 26,662.68 and 8,429.76

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Solution

The fourth proportional to 17,791.20, 26,662.68 and 8,429.76 is: 12,633.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,791.20 : 26,662.68 = 8,429.76 : x
  2. Step 2: Convert to fraction form
    17,791.20/26,662.68 = 8,429.76/x
  3. Step 3: Cross multiply
    17,791.20x = 26,662.68 × 8,429.76
  4. Step 4: Simplify right side
    17,791.20x = 224,759,993.36
  5. Step 5: Solve for x
    x = 224,759,993.36/17,791.20
  6. Step 6: Final answer
    x = 12,633.21

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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.