Home / 10,822.88-16,236.30-3,429.20

Finding the Fourth Proportional to 10,822.88, 16,236.30 and 3,429.20

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Solution

The fourth proportional to 10,822.88, 16,236.30 and 3,429.20 is: 5,144.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,822.88 : 16,236.30 = 3,429.20 : x
  2. Step 2: Convert to fraction form
    10,822.88/16,236.30 = 3,429.20/x
  3. Step 3: Cross multiply
    10,822.88x = 16,236.30 × 3,429.20
  4. Step 4: Simplify right side
    10,822.88x = 55,677,519.96
  5. Step 5: Solve for x
    x = 55,677,519.96/10,822.88
  6. Step 6: Final answer
    x = 5,144.43

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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.