Home / 11,671.78-16,107.60-6,366.91

Finding the Fourth Proportional to 11,671.78, 16,107.60 and 6,366.91

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Solution

The fourth proportional to 11,671.78, 16,107.60 and 6,366.91 is: 8,786.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,671.78 : 16,107.60 = 6,366.91 : x
  2. Step 2: Convert to fraction form
    11,671.78/16,107.60 = 6,366.91/x
  3. Step 3: Cross multiply
    11,671.78x = 16,107.60 × 6,366.91
  4. Step 4: Simplify right side
    11,671.78x = 102,555,639.52
  5. Step 5: Solve for x
    x = 102,555,639.52/11,671.78
  6. Step 6: Final answer
    x = 8,786.63

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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.