Home / 11,205.92-16,811.32-3,415.34

Finding the Fourth Proportional to 11,205.92, 16,811.32 and 3,415.34

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Solution

The fourth proportional to 11,205.92, 16,811.32 and 3,415.34 is: 5,123.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,205.92 : 16,811.32 = 3,415.34 : x
  2. Step 2: Convert to fraction form
    11,205.92/16,811.32 = 3,415.34/x
  3. Step 3: Cross multiply
    11,205.92x = 16,811.32 × 3,415.34
  4. Step 4: Simplify right side
    11,205.92x = 57,416,373.65
  5. Step 5: Solve for x
    x = 57,416,373.65/11,205.92
  6. Step 6: Final answer
    x = 5,123.75

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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.