Home / 6,989.26-9,645.36-4,156.96

Finding the Fourth Proportional to 6,989.26, 9,645.36 and 4,156.96

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Solution

The fourth proportional to 6,989.26, 9,645.36 and 4,156.96 is: 5,736.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.26 : 9,645.36 = 4,156.96 : x
  2. Step 2: Convert to fraction form
    6,989.26/9,645.36 = 4,156.96/x
  3. Step 3: Cross multiply
    6,989.26x = 9,645.36 × 4,156.96
  4. Step 4: Simplify right side
    6,989.26x = 40,095,375.71
  5. Step 5: Solve for x
    x = 40,095,375.71/6,989.26
  6. Step 6: Final answer
    x = 5,736.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.