Home / 13,581.12-20,337.66-11,073.36

Finding the Fourth Proportional to 13,581.12, 20,337.66 and 11,073.36

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Solution

The fourth proportional to 13,581.12, 20,337.66 and 11,073.36 is: 16,582.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581.12 : 20,337.66 = 11,073.36 : x
  2. Step 2: Convert to fraction form
    13,581.12/20,337.66 = 11,073.36/x
  3. Step 3: Cross multiply
    13,581.12x = 20,337.66 × 11,073.36
  4. Step 4: Simplify right side
    13,581.12x = 225,206,230.74
  5. Step 5: Solve for x
    x = 225,206,230.74/13,581.12
  6. Step 6: Final answer
    x = 16,582.30

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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.