Home / 11,909.12-17,858.38-6,361.44

Finding the Fourth Proportional to 11,909.12, 17,858.38 and 6,361.44

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Solution

The fourth proportional to 11,909.12, 17,858.38 and 6,361.44 is: 9,539.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.12 : 17,858.38 = 6,361.44 : x
  2. Step 2: Convert to fraction form
    11,909.12/17,858.38 = 6,361.44/x
  3. Step 3: Cross multiply
    11,909.12x = 17,858.38 × 6,361.44
  4. Step 4: Simplify right side
    11,909.12x = 113,605,012.87
  5. Step 5: Solve for x
    x = 113,605,012.87/11,909.12
  6. Step 6: Final answer
    x = 9,539.33

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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.