Home / 11,015.48-15,213.96-7,255.44

Finding the Fourth Proportional to 11,015.48, 15,213.96 and 7,255.44

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Solution

The fourth proportional to 11,015.48, 15,213.96 and 7,255.44 is: 10,020.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,015.48 : 15,213.96 = 7,255.44 : x
  2. Step 2: Convert to fraction form
    11,015.48/15,213.96 = 7,255.44/x
  3. Step 3: Cross multiply
    11,015.48x = 15,213.96 × 7,255.44
  4. Step 4: Simplify right side
    11,015.48x = 110,383,973.94
  5. Step 5: Solve for x
    x = 110,383,973.94/11,015.48
  6. Step 6: Final answer
    x = 10,020.80

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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.