Home / 13,868.82-20,773.80-12,877.38

Finding the Fourth Proportional to 13,868.82, 20,773.80 and 12,877.38

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Solution

The fourth proportional to 13,868.82, 20,773.80 and 12,877.38 is: 19,288.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.82 : 20,773.80 = 12,877.38 : x
  2. Step 2: Convert to fraction form
    13,868.82/20,773.80 = 12,877.38/x
  3. Step 3: Cross multiply
    13,868.82x = 20,773.80 × 12,877.38
  4. Step 4: Simplify right side
    13,868.82x = 267,512,116.64
  5. Step 5: Solve for x
    x = 267,512,116.64/13,868.82
  6. Step 6: Final answer
    x = 19,288.74

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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.