Home / 10,813.37-16,220.25-4,239.81

Finding the Fourth Proportional to 10,813.37, 16,220.25 and 4,239.81

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Solution

The fourth proportional to 10,813.37, 16,220.25 and 4,239.81 is: 6,359.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,813.37 : 16,220.25 = 4,239.81 : x
  2. Step 2: Convert to fraction form
    10,813.37/16,220.25 = 4,239.81/x
  3. Step 3: Cross multiply
    10,813.37x = 16,220.25 × 4,239.81
  4. Step 4: Simplify right side
    10,813.37x = 68,770,778.15
  5. Step 5: Solve for x
    x = 68,770,778.15/10,813.37
  6. Step 6: Final answer
    x = 6,359.79

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1.5x scale

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.