Home / 11,993.19-17,989.79-4,200.18

Finding the Fourth Proportional to 11,993.19, 17,989.79 and 4,200.18

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Solution

The fourth proportional to 11,993.19, 17,989.79 and 4,200.18 is: 6,300.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,993.19 : 17,989.79 = 4,200.18 : x
  2. Step 2: Convert to fraction form
    11,993.19/17,989.79 = 4,200.18/x
  3. Step 3: Cross multiply
    11,993.19x = 17,989.79 × 4,200.18
  4. Step 4: Simplify right side
    11,993.19x = 75,560,267.70
  5. Step 5: Solve for x
    x = 75,560,267.70/11,993.19
  6. Step 6: Final answer
    x = 6,300.27

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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.