Home / 10,408.16-15,616.56-5,481.44

Finding the Fourth Proportional to 10,408.16, 15,616.56 and 5,481.44

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Solution

The fourth proportional to 10,408.16, 15,616.56 and 5,481.44 is: 8,224.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,408.16 : 15,616.56 = 5,481.44 : x
  2. Step 2: Convert to fraction form
    10,408.16/15,616.56 = 5,481.44/x
  3. Step 3: Cross multiply
    10,408.16x = 15,616.56 × 5,481.44
  4. Step 4: Simplify right side
    10,408.16x = 85,601,236.65
  5. Step 5: Solve for x
    x = 85,601,236.65/10,408.16
  6. Step 6: Final answer
    x = 8,224.44

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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.