Home / 10,128.65-15,192.92-2,733.86

Finding the Fourth Proportional to 10,128.65, 15,192.92 and 2,733.86

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Solution

The fourth proportional to 10,128.65, 15,192.92 and 2,733.86 is: 4,100.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.65 : 15,192.92 = 2,733.86 : x
  2. Step 2: Convert to fraction form
    10,128.65/15,192.92 = 2,733.86/x
  3. Step 3: Cross multiply
    10,128.65x = 15,192.92 × 2,733.86
  4. Step 4: Simplify right side
    10,128.65x = 41,535,361.09
  5. Step 5: Solve for x
    x = 41,535,361.09/10,128.65
  6. Step 6: Final answer
    x = 4,100.78

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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.