Home / 13,799.22-20,698.94-3,938.58

Finding the Fourth Proportional to 13,799.22, 20,698.94 and 3,938.58

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Solution

The fourth proportional to 13,799.22, 20,698.94 and 3,938.58 is: 5,907.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799.22 : 20,698.94 = 3,938.58 : x
  2. Step 2: Convert to fraction form
    13,799.22/20,698.94 = 3,938.58/x
  3. Step 3: Cross multiply
    13,799.22x = 20,698.94 × 3,938.58
  4. Step 4: Simplify right side
    13,799.22x = 81,524,431.11
  5. Step 5: Solve for x
    x = 81,524,431.11/13,799.22
  6. Step 6: Final answer
    x = 5,907.90

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1.5x scale

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.