Home / 8,939.85-13,399.76-4,198.35

Finding the Fourth Proportional to 8,939.85, 13,399.76 and 4,198.35

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Solution

The fourth proportional to 8,939.85, 13,399.76 and 4,198.35 is: 6,292.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.85 : 13,399.76 = 4,198.35 : x
  2. Step 2: Convert to fraction form
    8,939.85/13,399.76 = 4,198.35/x
  3. Step 3: Cross multiply
    8,939.85x = 13,399.76 × 4,198.35
  4. Step 4: Simplify right side
    8,939.85x = 56,256,861.40
  5. Step 5: Solve for x
    x = 56,256,861.40/8,939.85
  6. Step 6: Final answer
    x = 6,292.82

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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.