Home / 11,115.25-15,340.49-6,336.94

Finding the Fourth Proportional to 11,115.25, 15,340.49 and 6,336.94

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Solution

The fourth proportional to 11,115.25, 15,340.49 and 6,336.94 is: 8,745.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.25 : 15,340.49 = 6,336.94 : x
  2. Step 2: Convert to fraction form
    11,115.25/15,340.49 = 6,336.94/x
  3. Step 3: Cross multiply
    11,115.25x = 15,340.49 × 6,336.94
  4. Step 4: Simplify right side
    11,115.25x = 97,211,764.70
  5. Step 5: Solve for x
    x = 97,211,764.70/11,115.25
  6. Step 6: Final answer
    x = 8,745.80

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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.