Home / 10,816.56-16,225.41-3,421.80

Finding the Fourth Proportional to 10,816.56, 16,225.41 and 3,421.80

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Solution

The fourth proportional to 10,816.56, 16,225.41 and 3,421.80 is: 5,132.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,816.56 : 16,225.41 = 3,421.80 : x
  2. Step 2: Convert to fraction form
    10,816.56/16,225.41 = 3,421.80/x
  3. Step 3: Cross multiply
    10,816.56x = 16,225.41 × 3,421.80
  4. Step 4: Simplify right side
    10,816.56x = 55,520,107.94
  5. Step 5: Solve for x
    x = 55,520,107.94/10,816.56
  6. Step 6: Final answer
    x = 5,132.88

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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.