Home / 10,198.26-15,272.01-6,489.54

Finding the Fourth Proportional to 10,198.26, 15,272.01 and 6,489.54

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Solution

The fourth proportional to 10,198.26, 15,272.01 and 6,489.54 is: 9,718.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198.26 : 15,272.01 = 6,489.54 : x
  2. Step 2: Convert to fraction form
    10,198.26/15,272.01 = 6,489.54/x
  3. Step 3: Cross multiply
    10,198.26x = 15,272.01 × 6,489.54
  4. Step 4: Simplify right side
    10,198.26x = 99,108,319.78
  5. Step 5: Solve for x
    x = 99,108,319.78/10,198.26
  6. Step 6: Final answer
    x = 9,718.16

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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.