Home / 17,120.97-25,680.11-5,434.29

Finding the Fourth Proportional to 17,120.97, 25,680.11 and 5,434.29

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Solution

The fourth proportional to 17,120.97, 25,680.11 and 5,434.29 is: 8,151.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,120.97 : 25,680.11 = 5,434.29 : x
  2. Step 2: Convert to fraction form
    17,120.97/25,680.11 = 5,434.29/x
  3. Step 3: Cross multiply
    17,120.97x = 25,680.11 × 5,434.29
  4. Step 4: Simplify right side
    17,120.97x = 139,553,137.80
  5. Step 5: Solve for x
    x = 139,553,137.80/17,120.97
  6. Step 6: Final answer
    x = 8,151.01

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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.