Home / 17,121.58-25,682.10-5,434.66

Finding the Fourth Proportional to 17,121.58, 25,682.10 and 5,434.66

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Solution

The fourth proportional to 17,121.58, 25,682.10 and 5,434.66 is: 8,151.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,121.58 : 25,682.10 = 5,434.66 : x
  2. Step 2: Convert to fraction form
    17,121.58/25,682.10 = 5,434.66/x
  3. Step 3: Cross multiply
    17,121.58x = 25,682.10 × 5,434.66
  4. Step 4: Simplify right side
    17,121.58x = 139,573,481.59
  5. Step 5: Solve for x
    x = 139,573,481.59/17,121.58
  6. Step 6: Final answer
    x = 8,151.90

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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.