Home / 18,974.83-28,463.61-7,288.05

Finding the Fourth Proportional to 18,974.83, 28,463.61 and 7,288.05

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Solution

The fourth proportional to 18,974.83, 28,463.61 and 7,288.05 is: 10,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,974.83 : 28,463.61 = 7,288.05 : x
  2. Step 2: Convert to fraction form
    18,974.83/28,463.61 = 7,288.05/x
  3. Step 3: Cross multiply
    18,974.83x = 28,463.61 × 7,288.05
  4. Step 4: Simplify right side
    18,974.83x = 207,444,212.86
  5. Step 5: Solve for x
    x = 207,444,212.86/18,974.83
  6. Step 6: Final answer
    x = 10,932.60

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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.