Home / 10,939.44-16,407.40-3,918.16

Finding the Fourth Proportional to 10,939.44, 16,407.40 and 3,918.16

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Solution

The fourth proportional to 10,939.44, 16,407.40 and 3,918.16 is: 5,876.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.44 : 16,407.40 = 3,918.16 : x
  2. Step 2: Convert to fraction form
    10,939.44/16,407.40 = 3,918.16/x
  3. Step 3: Cross multiply
    10,939.44x = 16,407.40 × 3,918.16
  4. Step 4: Simplify right side
    10,939.44x = 64,286,818.38
  5. Step 5: Solve for x
    x = 64,286,818.38/10,939.44
  6. Step 6: Final answer
    x = 5,876.61

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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.