Home / 10,222.20-14,107.14-5,745.72

Finding the Fourth Proportional to 10,222.20, 14,107.14 and 5,745.72

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Solution

The fourth proportional to 10,222.20, 14,107.14 and 5,745.72 is: 7,929.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,222.20 : 14,107.14 = 5,745.72 : x
  2. Step 2: Convert to fraction form
    10,222.20/14,107.14 = 5,745.72/x
  3. Step 3: Cross multiply
    10,222.20x = 14,107.14 × 5,745.72
  4. Step 4: Simplify right side
    10,222.20x = 81,055,676.44
  5. Step 5: Solve for x
    x = 81,055,676.44/10,222.20
  6. Step 6: Final answer
    x = 7,929.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.