Home / 12,238.87-18,358.27-3,473.79

Finding the Fourth Proportional to 12,238.87, 18,358.27 and 3,473.79

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Solution

The fourth proportional to 12,238.87, 18,358.27 and 3,473.79 is: 5,210.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,238.87 : 18,358.27 = 3,473.79 : x
  2. Step 2: Convert to fraction form
    12,238.87/18,358.27 = 3,473.79/x
  3. Step 3: Cross multiply
    12,238.87x = 18,358.27 × 3,473.79
  4. Step 4: Simplify right side
    12,238.87x = 63,772,766.06
  5. Step 5: Solve for x
    x = 63,772,766.06/12,238.87
  6. Step 6: Final answer
    x = 5,210.68

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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.