Home / 11,415.82-17,120.46-4,395.34

Finding the Fourth Proportional to 11,415.82, 17,120.46 and 4,395.34

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Solution

The fourth proportional to 11,415.82, 17,120.46 and 4,395.34 is: 6,591.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,415.82 : 17,120.46 = 4,395.34 : x
  2. Step 2: Convert to fraction form
    11,415.82/17,120.46 = 4,395.34/x
  3. Step 3: Cross multiply
    11,415.82x = 17,120.46 × 4,395.34
  4. Step 4: Simplify right side
    11,415.82x = 75,250,242.66
  5. Step 5: Solve for x
    x = 75,250,242.66/11,415.82
  6. Step 6: Final answer
    x = 6,591.75

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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.