Home / 10,982.81-16,475.82-3,190.61

Finding the Fourth Proportional to 10,982.81, 16,475.82 and 3,190.61

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Solution

The fourth proportional to 10,982.81, 16,475.82 and 3,190.61 is: 4,786.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,982.81 : 16,475.82 = 3,190.61 : x
  2. Step 2: Convert to fraction form
    10,982.81/16,475.82 = 3,190.61/x
  3. Step 3: Cross multiply
    10,982.81x = 16,475.82 × 3,190.61
  4. Step 4: Simplify right side
    10,982.81x = 52,567,916.05
  5. Step 5: Solve for x
    x = 52,567,916.05/10,982.81
  6. Step 6: Final answer
    x = 4,786.38

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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.