Home / 6,974.07-9,623.61-3,989.43

Finding the Fourth Proportional to 6,974.07, 9,623.61 and 3,989.43

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Solution

The fourth proportional to 6,974.07, 9,623.61 and 3,989.43 is: 5,505.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,974.07 : 9,623.61 = 3,989.43 : x
  2. Step 2: Convert to fraction form
    6,974.07/9,623.61 = 3,989.43/x
  3. Step 3: Cross multiply
    6,974.07x = 9,623.61 × 3,989.43
  4. Step 4: Simplify right side
    6,974.07x = 38,392,718.44
  5. Step 5: Solve for x
    x = 38,392,718.44/6,974.07
  6. Step 6: Final answer
    x = 5,505.07

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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.