Home / 10,974.09-15,144.13-5,938.20

Finding the Fourth Proportional to 10,974.09, 15,144.13 and 5,938.20

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Solution

The fourth proportional to 10,974.09, 15,144.13 and 5,938.20 is: 8,194.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,974.09 : 15,144.13 = 5,938.20 : x
  2. Step 2: Convert to fraction form
    10,974.09/15,144.13 = 5,938.20/x
  3. Step 3: Cross multiply
    10,974.09x = 15,144.13 × 5,938.20
  4. Step 4: Simplify right side
    10,974.09x = 89,928,797.05
  5. Step 5: Solve for x
    x = 89,928,797.05/10,974.09
  6. Step 6: Final answer
    x = 8,194.65

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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.