Home / 10,431.26-15,640.56-4,098.54

Finding the Fourth Proportional to 10,431.26, 15,640.56 and 4,098.54

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Solution

The fourth proportional to 10,431.26, 15,640.56 and 4,098.54 is: 6,145.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.26 : 15,640.56 = 4,098.54 : x
  2. Step 2: Convert to fraction form
    10,431.26/15,640.56 = 4,098.54/x
  3. Step 3: Cross multiply
    10,431.26x = 15,640.56 × 4,098.54
  4. Step 4: Simplify right side
    10,431.26x = 64,103,460.78
  5. Step 5: Solve for x
    x = 64,103,460.78/10,431.26
  6. Step 6: Final answer
    x = 6,145.33

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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.