Home / 11,013.10-16,519.63-3,221.90

Finding the Fourth Proportional to 11,013.10, 16,519.63 and 3,221.90

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Solution

The fourth proportional to 11,013.10, 16,519.63 and 3,221.90 is: 4,832.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,013.10 : 16,519.63 = 3,221.90 : x
  2. Step 2: Convert to fraction form
    11,013.10/16,519.63 = 3,221.90/x
  3. Step 3: Cross multiply
    11,013.10x = 16,519.63 × 3,221.90
  4. Step 4: Simplify right side
    11,013.10x = 53,224,595.90
  5. Step 5: Solve for x
    x = 53,224,595.90/11,013.10
  6. Step 6: Final answer
    x = 4,832.84

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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.