Home / 11,998.14-17,986.20-4,202.70

Finding the Fourth Proportional to 11,998.14, 17,986.20 and 4,202.70

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Solution

The fourth proportional to 11,998.14, 17,986.20 and 4,202.70 is: 6,300.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,998.14 : 17,986.20 = 4,202.70 : x
  2. Step 2: Convert to fraction form
    11,998.14/17,986.20 = 4,202.70/x
  3. Step 3: Cross multiply
    11,998.14x = 17,986.20 × 4,202.70
  4. Step 4: Simplify right side
    11,998.14x = 75,590,602.74
  5. Step 5: Solve for x
    x = 75,590,602.74/11,998.14
  6. Step 6: Final answer
    x = 6,300.19

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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.