Home / 11,994.18-17,991.30-6,147.60

Finding the Fourth Proportional to 11,994.18, 17,991.30 and 6,147.60

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Solution

The fourth proportional to 11,994.18, 17,991.30 and 6,147.60 is: 9,221.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,994.18 : 17,991.30 = 6,147.60 : x
  2. Step 2: Convert to fraction form
    11,994.18/17,991.30 = 6,147.60/x
  3. Step 3: Cross multiply
    11,994.18x = 17,991.30 × 6,147.60
  4. Step 4: Simplify right side
    11,994.18x = 110,603,315.88
  5. Step 5: Solve for x
    x = 110,603,315.88/11,994.18
  6. Step 6: Final answer
    x = 9,221.42

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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.