Home / 11,209.23-16,816.05-3,811.68

Finding the Fourth Proportional to 11,209.23, 16,816.05 and 3,811.68

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Solution

The fourth proportional to 11,209.23, 16,816.05 and 3,811.68 is: 5,718.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.23 : 16,816.05 = 3,811.68 : x
  2. Step 2: Convert to fraction form
    11,209.23/16,816.05 = 3,811.68/x
  3. Step 3: Cross multiply
    11,209.23x = 16,816.05 × 3,811.68
  4. Step 4: Simplify right side
    11,209.23x = 64,097,401.46
  5. Step 5: Solve for x
    x = 64,097,401.46/11,209.23
  6. Step 6: Final answer
    x = 5,718.27

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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.