Home / 6,628.42-9,939.12-3,993.49

Finding the Fourth Proportional to 6,628.42, 9,939.12 and 3,993.49

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Solution

The fourth proportional to 6,628.42, 9,939.12 and 3,993.49 is: 5,988.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,628.42 : 9,939.12 = 3,993.49 : x
  2. Step 2: Convert to fraction form
    6,628.42/9,939.12 = 3,993.49/x
  3. Step 3: Cross multiply
    6,628.42x = 9,939.12 × 3,993.49
  4. Step 4: Simplify right side
    6,628.42x = 39,691,776.33
  5. Step 5: Solve for x
    x = 39,691,776.33/6,628.42
  6. Step 6: Final answer
    x = 5,988.12

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1.5x scale

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.