Home / 11,390.21-17,085.44-3,994.85

Finding the Fourth Proportional to 11,390.21, 17,085.44 and 3,994.85

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Solution

The fourth proportional to 11,390.21, 17,085.44 and 3,994.85 is: 5,992.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.21 : 17,085.44 = 3,994.85 : x
  2. Step 2: Convert to fraction form
    11,390.21/17,085.44 = 3,994.85/x
  3. Step 3: Cross multiply
    11,390.21x = 17,085.44 × 3,994.85
  4. Step 4: Simplify right side
    11,390.21x = 68,253,769.98
  5. Step 5: Solve for x
    x = 68,253,769.98/11,390.21
  6. Step 6: Final answer
    x = 5,992.32

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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.