Home / 18,183.48-27,275.21-8,315.85

Finding the Fourth Proportional to 18,183.48, 27,275.21 and 8,315.85

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Solution

The fourth proportional to 18,183.48, 27,275.21 and 8,315.85 is: 12,473.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,183.48 : 27,275.21 = 8,315.85 : x
  2. Step 2: Convert to fraction form
    18,183.48/27,275.21 = 8,315.85/x
  3. Step 3: Cross multiply
    18,183.48x = 27,275.21 × 8,315.85
  4. Step 4: Simplify right side
    18,183.48x = 226,816,555.08
  5. Step 5: Solve for x
    x = 226,816,555.08/18,183.48
  6. Step 6: Final answer
    x = 12,473.77

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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.