Home / 11,215.20-16,822.65-3,424.05

Finding the Fourth Proportional to 11,215.20, 16,822.65 and 3,424.05

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Solution

The fourth proportional to 11,215.20, 16,822.65 and 3,424.05 is: 5,136.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.20 : 16,822.65 = 3,424.05 : x
  2. Step 2: Convert to fraction form
    11,215.20/16,822.65 = 3,424.05/x
  3. Step 3: Cross multiply
    11,215.20x = 16,822.65 × 3,424.05
  4. Step 4: Simplify right side
    11,215.20x = 57,601,594.73
  5. Step 5: Solve for x
    x = 57,601,594.73/11,215.20
  6. Step 6: Final answer
    x = 5,136.03

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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.