Home / 11,440.28-17,122.32-8,651.58

Finding the Fourth Proportional to 11,440.28, 17,122.32 and 8,651.58

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Solution

The fourth proportional to 11,440.28, 17,122.32 and 8,651.58 is: 12,948.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,440.28 : 17,122.32 = 8,651.58 : x
  2. Step 2: Convert to fraction form
    11,440.28/17,122.32 = 8,651.58/x
  3. Step 3: Cross multiply
    11,440.28x = 17,122.32 × 8,651.58
  4. Step 4: Simplify right side
    11,440.28x = 148,135,121.27
  5. Step 5: Solve for x
    x = 148,135,121.27/11,440.28
  6. Step 6: Final answer
    x = 12,948.56

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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.