Home / 17,120.52-25,680.70-5,434.66

Finding the Fourth Proportional to 17,120.52, 25,680.70 and 5,434.66

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Solution

The fourth proportional to 17,120.52, 25,680.70 and 5,434.66 is: 8,151.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,120.52 : 25,680.70 = 5,434.66 : x
  2. Step 2: Convert to fraction form
    17,120.52/25,680.70 = 5,434.66/x
  3. Step 3: Cross multiply
    17,120.52x = 25,680.70 × 5,434.66
  4. Step 4: Simplify right side
    17,120.52x = 139,565,873.06
  5. Step 5: Solve for x
    x = 139,565,873.06/17,120.52
  6. Step 6: Final answer
    x = 8,151.96

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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.