Home / 11,247.40-16,871.10-3,456.20

Finding the Fourth Proportional to 11,247.40, 16,871.10 and 3,456.20

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Solution

The fourth proportional to 11,247.40, 16,871.10 and 3,456.20 is: 5,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,247.40 : 16,871.10 = 3,456.20 : x
  2. Step 2: Convert to fraction form
    11,247.40/16,871.10 = 3,456.20/x
  3. Step 3: Cross multiply
    11,247.40x = 16,871.10 × 3,456.20
  4. Step 4: Simplify right side
    11,247.40x = 58,309,895.82
  5. Step 5: Solve for x
    x = 58,309,895.82/11,247.40
  6. Step 6: Final answer
    x = 5,184.30

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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.