Home / 11,183.68-15,432.70-6,147.79

Finding the Fourth Proportional to 11,183.68, 15,432.70 and 6,147.79

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Solution

The fourth proportional to 11,183.68, 15,432.70 and 6,147.79 is: 8,483.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,183.68 : 15,432.70 = 6,147.79 : x
  2. Step 2: Convert to fraction form
    11,183.68/15,432.70 = 6,147.79/x
  3. Step 3: Cross multiply
    11,183.68x = 15,432.70 × 6,147.79
  4. Step 4: Simplify right side
    11,183.68x = 94,876,998.73
  5. Step 5: Solve for x
    x = 94,876,998.73/11,183.68
  6. Step 6: Final answer
    x = 8,483.53

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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.