Home / 11,245.44-15,532.49-8,425.42

Finding the Fourth Proportional to 11,245.44, 15,532.49 and 8,425.42

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Solution

The fourth proportional to 11,245.44, 15,532.49 and 8,425.42 is: 11,637.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.44 : 15,532.49 = 8,425.42 : x
  2. Step 2: Convert to fraction form
    11,245.44/15,532.49 = 8,425.42/x
  3. Step 3: Cross multiply
    11,245.44x = 15,532.49 × 8,425.42
  4. Step 4: Simplify right side
    11,245.44x = 130,867,751.90
  5. Step 5: Solve for x
    x = 130,867,751.90/11,245.44
  6. Step 6: Final answer
    x = 11,637.41

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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.