Home / 18,516.92-27,780.16-5,370.32

Finding the Fourth Proportional to 18,516.92, 27,780.16 and 5,370.32

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Solution

The fourth proportional to 18,516.92, 27,780.16 and 5,370.32 is: 8,056.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,516.92 : 27,780.16 = 5,370.32 : x
  2. Step 2: Convert to fraction form
    18,516.92/27,780.16 = 5,370.32/x
  3. Step 3: Cross multiply
    18,516.92x = 27,780.16 × 5,370.32
  4. Step 4: Simplify right side
    18,516.92x = 149,188,348.85
  5. Step 5: Solve for x
    x = 149,188,348.85/18,516.92
  6. Step 6: Final answer
    x = 8,056.87

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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.