Home / 15,183.29-20,952.81-8,377.38

Finding the Fourth Proportional to 15,183.29, 20,952.81 and 8,377.38

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Solution

The fourth proportional to 15,183.29, 20,952.81 and 8,377.38 is: 11,560.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,183.29 : 20,952.81 = 8,377.38 : x
  2. Step 2: Convert to fraction form
    15,183.29/20,952.81 = 8,377.38/x
  3. Step 3: Cross multiply
    15,183.29x = 20,952.81 × 8,377.38
  4. Step 4: Simplify right side
    15,183.29x = 175,529,608.00
  5. Step 5: Solve for x
    x = 175,529,608.00/15,183.29
  6. Step 6: Final answer
    x = 11,560.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.