Home / 10,939.91-16,383.74-5,660.74

Finding the Fourth Proportional to 10,939.91, 16,383.74 and 5,660.74

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Solution

The fourth proportional to 10,939.91, 16,383.74 and 5,660.74 is: 8,477.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.91 : 16,383.74 = 5,660.74 : x
  2. Step 2: Convert to fraction form
    10,939.91/16,383.74 = 5,660.74/x
  3. Step 3: Cross multiply
    10,939.91x = 16,383.74 × 5,660.74
  4. Step 4: Simplify right side
    10,939.91x = 92,744,010.45
  5. Step 5: Solve for x
    x = 92,744,010.45/10,939.91
  6. Step 6: Final answer
    x = 8,477.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.