Home / 11,905.92-16,429.89-6,600.69

Finding the Fourth Proportional to 11,905.92, 16,429.89 and 6,600.69

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Solution

The fourth proportional to 11,905.92, 16,429.89 and 6,600.69 is: 9,108.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,905.92 : 16,429.89 = 6,600.69 : x
  2. Step 2: Convert to fraction form
    11,905.92/16,429.89 = 6,600.69/x
  3. Step 3: Cross multiply
    11,905.92x = 16,429.89 × 6,600.69
  4. Step 4: Simplify right side
    11,905.92x = 108,448,610.62
  5. Step 5: Solve for x
    x = 108,448,610.62/11,905.92
  6. Step 6: Final answer
    x = 9,108.80

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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.