Home / 10,639.86-15,954.45-6,198.96

Finding the Fourth Proportional to 10,639.86, 15,954.45 and 6,198.96

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Solution

The fourth proportional to 10,639.86, 15,954.45 and 6,198.96 is: 9,295.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.86 : 15,954.45 = 6,198.96 : x
  2. Step 2: Convert to fraction form
    10,639.86/15,954.45 = 6,198.96/x
  3. Step 3: Cross multiply
    10,639.86x = 15,954.45 × 6,198.96
  4. Step 4: Simplify right side
    10,639.86x = 98,900,997.37
  5. Step 5: Solve for x
    x = 98,900,997.37/10,639.86
  6. Step 6: Final answer
    x = 9,295.33

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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.