Home / 10,864.80-16,299.60-3,469.68

Finding the Fourth Proportional to 10,864.80, 16,299.60 and 3,469.68

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Solution

The fourth proportional to 10,864.80, 16,299.60 and 3,469.68 is: 5,205.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,864.80 : 16,299.60 = 3,469.68 : x
  2. Step 2: Convert to fraction form
    10,864.80/16,299.60 = 3,469.68/x
  3. Step 3: Cross multiply
    10,864.80x = 16,299.60 × 3,469.68
  4. Step 4: Simplify right side
    10,864.80x = 56,554,396.13
  5. Step 5: Solve for x
    x = 56,554,396.13/10,864.80
  6. Step 6: Final answer
    x = 5,205.29

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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.