Home / 18,120.56-27,183.41-5,641.85

Finding the Fourth Proportional to 18,120.56, 27,183.41 and 5,641.85

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Solution

The fourth proportional to 18,120.56, 27,183.41 and 5,641.85 is: 8,463.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.56 : 27,183.41 = 5,641.85 : x
  2. Step 2: Convert to fraction form
    18,120.56/27,183.41 = 5,641.85/x
  3. Step 3: Cross multiply
    18,120.56x = 27,183.41 × 5,641.85
  4. Step 4: Simplify right side
    18,120.56x = 153,364,721.71
  5. Step 5: Solve for x
    x = 153,364,721.71/18,120.56
  6. Step 6: Final answer
    x = 8,463.58

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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.