Home / 11,906.80-16,431.19-6,601.50

Finding the Fourth Proportional to 11,906.80, 16,431.19 and 6,601.50

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Solution

The fourth proportional to 11,906.80, 16,431.19 and 6,601.50 is: 9,109.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,906.80 : 16,431.19 = 6,601.50 : x
  2. Step 2: Convert to fraction form
    11,906.80/16,431.19 = 6,601.50/x
  3. Step 3: Cross multiply
    11,906.80x = 16,431.19 × 6,601.50
  4. Step 4: Simplify right side
    11,906.80x = 108,470,484.28
  5. Step 5: Solve for x
    x = 108,470,484.28/11,906.80
  6. Step 6: Final answer
    x = 9,109.96

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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.