Home / 10,418.54-15,621.66-4,181.48

Finding the Fourth Proportional to 10,418.54, 15,621.66 and 4,181.48

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Solution

The fourth proportional to 10,418.54, 15,621.66 and 4,181.48 is: 6,269.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,418.54 : 15,621.66 = 4,181.48 : x
  2. Step 2: Convert to fraction form
    10,418.54/15,621.66 = 4,181.48/x
  3. Step 3: Cross multiply
    10,418.54x = 15,621.66 × 4,181.48
  4. Step 4: Simplify right side
    10,418.54x = 65,321,658.86
  5. Step 5: Solve for x
    x = 65,321,658.86/10,418.54
  6. Step 6: Final answer
    x = 6,269.75

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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.