Home / 13,361.44-18,447.20-8,583.32

Finding the Fourth Proportional to 13,361.44, 18,447.20 and 8,583.32

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Solution

The fourth proportional to 13,361.44, 18,447.20 and 8,583.32 is: 11,850.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361.44 : 18,447.20 = 8,583.32 : x
  2. Step 2: Convert to fraction form
    13,361.44/18,447.20 = 8,583.32/x
  3. Step 3: Cross multiply
    13,361.44x = 18,447.20 × 8,583.32
  4. Step 4: Simplify right side
    13,361.44x = 158,338,220.70
  5. Step 5: Solve for x
    x = 158,338,220.70/13,361.44
  6. Step 6: Final answer
    x = 11,850.39

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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.