Home / 12,231.52-16,880.54-7,517.44

Finding the Fourth Proportional to 12,231.52, 16,880.54 and 7,517.44

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Solution

The fourth proportional to 12,231.52, 16,880.54 and 7,517.44 is: 10,374.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.52 : 16,880.54 = 7,517.44 : x
  2. Step 2: Convert to fraction form
    12,231.52/16,880.54 = 7,517.44/x
  3. Step 3: Cross multiply
    12,231.52x = 16,880.54 × 7,517.44
  4. Step 4: Simplify right side
    12,231.52x = 126,898,446.62
  5. Step 5: Solve for x
    x = 126,898,446.62/12,231.52
  6. Step 6: Final answer
    x = 10,374.71

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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.