Home / 11,113.56-16,670.28-4,183.20

Finding the Fourth Proportional to 11,113.56, 16,670.28 and 4,183.20

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Solution

The fourth proportional to 11,113.56, 16,670.28 and 4,183.20 is: 6,274.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.56 : 16,670.28 = 4,183.20 : x
  2. Step 2: Convert to fraction form
    11,113.56/16,670.28 = 4,183.20/x
  3. Step 3: Cross multiply
    11,113.56x = 16,670.28 × 4,183.20
  4. Step 4: Simplify right side
    11,113.56x = 69,735,115.30
  5. Step 5: Solve for x
    x = 69,735,115.30/11,113.56
  6. Step 6: Final answer
    x = 6,274.78

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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.