Home / 11,981.20-17,974.68-4,585.54

Finding the Fourth Proportional to 11,981.20, 17,974.68 and 4,585.54

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Solution

The fourth proportional to 11,981.20, 17,974.68 and 4,585.54 is: 6,879.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.20 : 17,974.68 = 4,585.54 : x
  2. Step 2: Convert to fraction form
    11,981.20/17,974.68 = 4,585.54/x
  3. Step 3: Cross multiply
    11,981.20x = 17,974.68 × 4,585.54
  4. Step 4: Simplify right side
    11,981.20x = 82,423,614.13
  5. Step 5: Solve for x
    x = 82,423,614.13/11,981.20
  6. Step 6: Final answer
    x = 6,879.41

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1.5x scale

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.