Home / 12,488.24-18,732.38-3,723.24

Finding the Fourth Proportional to 12,488.24, 18,732.38 and 3,723.24

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Solution

The fourth proportional to 12,488.24, 18,732.38 and 3,723.24 is: 5,584.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488.24 : 18,732.38 = 3,723.24 : x
  2. Step 2: Convert to fraction form
    12,488.24/18,732.38 = 3,723.24/x
  3. Step 3: Cross multiply
    12,488.24x = 18,732.38 × 3,723.24
  4. Step 4: Simplify right side
    12,488.24x = 69,745,146.51
  5. Step 5: Solve for x
    x = 69,745,146.51/12,488.24
  6. Step 6: Final answer
    x = 5,584.87

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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.