Home / 11,872.50-17,806.68-3,974.46

Finding the Fourth Proportional to 11,872.50, 17,806.68 and 3,974.46

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Solution

The fourth proportional to 11,872.50, 17,806.68 and 3,974.46 is: 5,961.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,872.50 : 17,806.68 = 3,974.46 : x
  2. Step 2: Convert to fraction form
    11,872.50/17,806.68 = 3,974.46/x
  3. Step 3: Cross multiply
    11,872.50x = 17,806.68 × 3,974.46
  4. Step 4: Simplify right side
    11,872.50x = 70,771,937.39
  5. Step 5: Solve for x
    x = 70,771,937.39/11,872.50
  6. Step 6: Final answer
    x = 5,961.00

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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.