Home / 11,209.05-16,811.24-4,187.77

Finding the Fourth Proportional to 11,209.05, 16,811.24 and 4,187.77

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Solution

The fourth proportional to 11,209.05, 16,811.24 and 4,187.77 is: 6,280.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.05 : 16,811.24 = 4,187.77 : x
  2. Step 2: Convert to fraction form
    11,209.05/16,811.24 = 4,187.77/x
  3. Step 3: Cross multiply
    11,209.05x = 16,811.24 × 4,187.77
  4. Step 4: Simplify right side
    11,209.05x = 70,401,543.57
  5. Step 5: Solve for x
    x = 70,401,543.57/11,209.05
  6. Step 6: Final answer
    x = 6,280.78

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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.