Home / 11,011.95-16,520.49-3,221.37

Finding the Fourth Proportional to 11,011.95, 16,520.49 and 3,221.37

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Solution

The fourth proportional to 11,011.95, 16,520.49 and 3,221.37 is: 4,832.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,011.95 : 16,520.49 = 3,221.37 : x
  2. Step 2: Convert to fraction form
    11,011.95/16,520.49 = 3,221.37/x
  3. Step 3: Cross multiply
    11,011.95x = 16,520.49 × 3,221.37
  4. Step 4: Simplify right side
    11,011.95x = 53,218,610.87
  5. Step 5: Solve for x
    x = 53,218,610.87/11,011.95
  6. Step 6: Final answer
    x = 4,832.81

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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.