Home / 18,964.53-28,446.39-5,816.61

Finding the Fourth Proportional to 18,964.53, 28,446.39 and 5,816.61

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Solution

The fourth proportional to 18,964.53, 28,446.39 and 5,816.61 is: 8,724.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,964.53 : 28,446.39 = 5,816.61 : x
  2. Step 2: Convert to fraction form
    18,964.53/28,446.39 = 5,816.61/x
  3. Step 3: Cross multiply
    18,964.53x = 28,446.39 × 5,816.61
  4. Step 4: Simplify right side
    18,964.53x = 165,461,556.54
  5. Step 5: Solve for x
    x = 165,461,556.54/18,964.53
  6. Step 6: Final answer
    x = 8,724.79

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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.