Home / 7,949.17-11,922.13-3,999.34

Finding the Fourth Proportional to 7,949.17, 11,922.13 and 3,999.34

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Solution

The fourth proportional to 7,949.17, 11,922.13 and 3,999.34 is: 5,998.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,949.17 : 11,922.13 = 3,999.34 : x
  2. Step 2: Convert to fraction form
    7,949.17/11,922.13 = 3,999.34/x
  3. Step 3: Cross multiply
    7,949.17x = 11,922.13 × 3,999.34
  4. Step 4: Simplify right side
    7,949.17x = 47,680,651.39
  5. Step 5: Solve for x
    x = 47,680,651.39/7,949.17
  6. Step 6: Final answer
    x = 5,998.19

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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.