Home / 13,222.60-19,833.78-3,361.78

Finding the Fourth Proportional to 13,222.60, 19,833.78 and 3,361.78

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Solution

The fourth proportional to 13,222.60, 19,833.78 and 3,361.78 is: 5,042.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.60 : 19,833.78 = 3,361.78 : x
  2. Step 2: Convert to fraction form
    13,222.60/19,833.78 = 3,361.78/x
  3. Step 3: Cross multiply
    13,222.60x = 19,833.78 × 3,361.78
  4. Step 4: Simplify right side
    13,222.60x = 66,676,804.93
  5. Step 5: Solve for x
    x = 66,676,804.93/13,222.60
  6. Step 6: Final answer
    x = 5,042.64

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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.