Home / 17,142.82-25,728.84-6,761.86

Finding the Fourth Proportional to 17,142.82, 25,728.84 and 6,761.86

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Solution

The fourth proportional to 17,142.82, 25,728.84 and 6,761.86 is: 10,148.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,142.82 : 25,728.84 = 6,761.86 : x
  2. Step 2: Convert to fraction form
    17,142.82/25,728.84 = 6,761.86/x
  3. Step 3: Cross multiply
    17,142.82x = 25,728.84 × 6,761.86
  4. Step 4: Simplify right side
    17,142.82x = 173,974,814.04
  5. Step 5: Solve for x
    x = 173,974,814.04/17,142.82
  6. Step 6: Final answer
    x = 10,148.55

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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.