Home / 13,691.33-20,529.14-5,361.60

Finding the Fourth Proportional to 13,691.33, 20,529.14 and 5,361.60

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Solution

The fourth proportional to 13,691.33, 20,529.14 and 5,361.60 is: 8,039.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,691.33 : 20,529.14 = 5,361.60 : x
  2. Step 2: Convert to fraction form
    13,691.33/20,529.14 = 5,361.60/x
  3. Step 3: Cross multiply
    13,691.33x = 20,529.14 × 5,361.60
  4. Step 4: Simplify right side
    13,691.33x = 110,069,037.02
  5. Step 5: Solve for x
    x = 110,069,037.02/13,691.33
  6. Step 6: Final answer
    x = 8,039.32

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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.