Home / 11,246.97-15,520.85-6,211.20

Finding the Fourth Proportional to 11,246.97, 15,520.85 and 6,211.20

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Solution

The fourth proportional to 11,246.97, 15,520.85 and 6,211.20 is: 8,571.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,246.97 : 15,520.85 = 6,211.20 : x
  2. Step 2: Convert to fraction form
    11,246.97/15,520.85 = 6,211.20/x
  3. Step 3: Cross multiply
    11,246.97x = 15,520.85 × 6,211.20
  4. Step 4: Simplify right side
    11,246.97x = 96,403,072.46
  5. Step 5: Solve for x
    x = 96,403,072.46/11,246.97
  6. Step 6: Final answer
    x = 8,571.47

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.