Home / 9,676.69-13,351.49-6,138.61

Finding the Fourth Proportional to 9,676.69, 13,351.49 and 6,138.61

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Solution

The fourth proportional to 9,676.69, 13,351.49 and 6,138.61 is: 8,469.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,676.69 : 13,351.49 = 6,138.61 : x
  2. Step 2: Convert to fraction form
    9,676.69/13,351.49 = 6,138.61/x
  3. Step 3: Cross multiply
    9,676.69x = 13,351.49 × 6,138.61
  4. Step 4: Simplify right side
    9,676.69x = 81,959,523.27
  5. Step 5: Solve for x
    x = 81,959,523.27/9,676.69
  6. Step 6: Final answer
    x = 8,469.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.