Home / 6,824.45-9,416.88-3,991.27

Finding the Fourth Proportional to 6,824.45, 9,416.88 and 3,991.27

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Solution

The fourth proportional to 6,824.45, 9,416.88 and 3,991.27 is: 5,507.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,824.45 : 9,416.88 = 3,991.27 : x
  2. Step 2: Convert to fraction form
    6,824.45/9,416.88 = 3,991.27/x
  3. Step 3: Cross multiply
    6,824.45x = 9,416.88 × 3,991.27
  4. Step 4: Simplify right side
    6,824.45x = 37,585,289.49
  5. Step 5: Solve for x
    x = 37,585,289.49/6,824.45
  6. Step 6: Final answer
    x = 5,507.44

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1.5x scale

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.