Home / 17,115.72-25,672.23-5,429.04

Finding the Fourth Proportional to 17,115.72, 25,672.23 and 5,429.04

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Solution

The fourth proportional to 17,115.72, 25,672.23 and 5,429.04 is: 8,143.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,115.72 : 25,672.23 = 5,429.04 : x
  2. Step 2: Convert to fraction form
    17,115.72/25,672.23 = 5,429.04/x
  3. Step 3: Cross multiply
    17,115.72x = 25,672.23 × 5,429.04
  4. Step 4: Simplify right side
    17,115.72x = 139,375,563.56
  5. Step 5: Solve for x
    x = 139,375,563.56/17,115.72
  6. Step 6: Final answer
    x = 8,143.13

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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.