Home / 12,424.80-18,635.76-3,659.52

Finding the Fourth Proportional to 12,424.80, 18,635.76 and 3,659.52

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Solution

The fourth proportional to 12,424.80, 18,635.76 and 3,659.52 is: 5,488.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424.80 : 18,635.76 = 3,659.52 : x
  2. Step 2: Convert to fraction form
    12,424.80/18,635.76 = 3,659.52/x
  3. Step 3: Cross multiply
    12,424.80x = 18,635.76 × 3,659.52
  4. Step 4: Simplify right side
    12,424.80x = 68,197,936.44
  5. Step 5: Solve for x
    x = 68,197,936.44/12,424.80
  6. Step 6: Final answer
    x = 5,488.86

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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.