Home / 11,240.85-16,863.10-4,221.41

Finding the Fourth Proportional to 11,240.85, 16,863.10 and 4,221.41

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Solution

The fourth proportional to 11,240.85, 16,863.10 and 4,221.41 is: 6,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,240.85 : 16,863.10 = 4,221.41 : x
  2. Step 2: Convert to fraction form
    11,240.85/16,863.10 = 4,221.41/x
  3. Step 3: Cross multiply
    11,240.85x = 16,863.10 × 4,221.41
  4. Step 4: Simplify right side
    11,240.85x = 71,185,974.66
  5. Step 5: Solve for x
    x = 71,185,974.66/11,240.85
  6. Step 6: Final answer
    x = 6,332.80

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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.