Home / 13,222.44-18,241.20-8,185.32

Finding the Fourth Proportional to 13,222.44, 18,241.20 and 8,185.32

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Solution

The fourth proportional to 13,222.44, 18,241.20 and 8,185.32 is: 11,292.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.44 : 18,241.20 = 8,185.32 : x
  2. Step 2: Convert to fraction form
    13,222.44/18,241.20 = 8,185.32/x
  3. Step 3: Cross multiply
    13,222.44x = 18,241.20 × 8,185.32
  4. Step 4: Simplify right side
    13,222.44x = 149,310,059.18
  5. Step 5: Solve for x
    x = 149,310,059.18/13,222.44
  6. Step 6: Final answer
    x = 11,292.17

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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.