Home / 11,993.12-17,990.58-4,093.20

Finding the Fourth Proportional to 11,993.12, 17,990.58 and 4,093.20

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Solution

The fourth proportional to 11,993.12, 17,990.58 and 4,093.20 is: 6,140.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,993.12 : 17,990.58 = 4,093.20 : x
  2. Step 2: Convert to fraction form
    11,993.12/17,990.58 = 4,093.20/x
  3. Step 3: Cross multiply
    11,993.12x = 17,990.58 × 4,093.20
  4. Step 4: Simplify right side
    11,993.12x = 73,639,042.06
  5. Step 5: Solve for x
    x = 73,639,042.06/11,993.12
  6. Step 6: Final answer
    x = 6,140.11

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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.