Home / 18,420.41-27,626.82-5,269.86

Finding the Fourth Proportional to 18,420.41, 27,626.82 and 5,269.86

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Solution

The fourth proportional to 18,420.41, 27,626.82 and 5,269.86 is: 7,903.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420.41 : 27,626.82 = 5,269.86 : x
  2. Step 2: Convert to fraction form
    18,420.41/27,626.82 = 5,269.86/x
  3. Step 3: Cross multiply
    18,420.41x = 27,626.82 × 5,269.86
  4. Step 4: Simplify right side
    18,420.41x = 145,589,473.65
  5. Step 5: Solve for x
    x = 145,589,473.65/18,420.41
  6. Step 6: Final answer
    x = 7,903.71

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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.