Home / 11,396.40-15,727.36-6,361.44

Finding the Fourth Proportional to 11,396.40, 15,727.36 and 6,361.44

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Solution

The fourth proportional to 11,396.40, 15,727.36 and 6,361.44 is: 8,778.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,396.40 : 15,727.36 = 6,361.44 : x
  2. Step 2: Convert to fraction form
    11,396.40/15,727.36 = 6,361.44/x
  3. Step 3: Cross multiply
    11,396.40x = 15,727.36 × 6,361.44
  4. Step 4: Simplify right side
    11,396.40x = 100,048,657.00
  5. Step 5: Solve for x
    x = 100,048,657.00/11,396.40
  6. Step 6: Final answer
    x = 8,778.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.