Home / 11,183.21-15,432.82-6,147.75

Finding the Fourth Proportional to 11,183.21, 15,432.82 and 6,147.75

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Solution

The fourth proportional to 11,183.21, 15,432.82 and 6,147.75 is: 8,483.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,183.21 : 15,432.82 = 6,147.75 : x
  2. Step 2: Convert to fraction form
    11,183.21/15,432.82 = 6,147.75/x
  3. Step 3: Cross multiply
    11,183.21x = 15,432.82 × 6,147.75
  4. Step 4: Simplify right side
    11,183.21x = 94,877,103.79
  5. Step 5: Solve for x
    x = 94,877,103.79/11,183.21
  6. Step 6: Final answer
    x = 8,483.89

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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.