Home / 11,671.39-16,105.11-6,635.62

Finding the Fourth Proportional to 11,671.39, 16,105.11 and 6,635.62

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Solution

The fourth proportional to 11,671.39, 16,105.11 and 6,635.62 is: 9,156.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,671.39 : 16,105.11 = 6,635.62 : x
  2. Step 2: Convert to fraction form
    11,671.39/16,105.11 = 6,635.62/x
  3. Step 3: Cross multiply
    11,671.39x = 16,105.11 × 6,635.62
  4. Step 4: Simplify right side
    11,671.39x = 106,867,309.49
  5. Step 5: Solve for x
    x = 106,867,309.49/11,671.39
  6. Step 6: Final answer
    x = 9,156.35

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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.