Home / 9,414.38-12,991.85-5,223.44

Finding the Fourth Proportional to 9,414.38, 12,991.85 and 5,223.44

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Solution

The fourth proportional to 9,414.38, 12,991.85 and 5,223.44 is: 7,208.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,414.38 : 12,991.85 = 5,223.44 : x
  2. Step 2: Convert to fraction form
    9,414.38/12,991.85 = 5,223.44/x
  3. Step 3: Cross multiply
    9,414.38x = 12,991.85 × 5,223.44
  4. Step 4: Simplify right side
    9,414.38x = 67,862,057.89
  5. Step 5: Solve for x
    x = 67,862,057.89/9,414.38
  6. Step 6: Final answer
    x = 7,208.34

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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.