Home / 13,745.58-20,604.29-5,422.22

Finding the Fourth Proportional to 13,745.58, 20,604.29 and 5,422.22

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Solution

The fourth proportional to 13,745.58, 20,604.29 and 5,422.22 is: 8,127.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,745.58 : 20,604.29 = 5,422.22 : x
  2. Step 2: Convert to fraction form
    13,745.58/20,604.29 = 5,422.22/x
  3. Step 3: Cross multiply
    13,745.58x = 20,604.29 × 5,422.22
  4. Step 4: Simplify right side
    13,745.58x = 111,721,017.72
  5. Step 5: Solve for x
    x = 111,721,017.72/13,745.58
  6. Step 6: Final answer
    x = 8,127.78

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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.