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Finding the Fourth Proportional to 8,183.86, 11,289.86 and 5,532.20

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Solution

The fourth proportional to 8,183.86, 11,289.86 and 5,532.20 is: 7,631.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,183.86 : 11,289.86 = 5,532.20 : x
  2. Step 2: Convert to fraction form
    8,183.86/11,289.86 = 5,532.20/x
  3. Step 3: Cross multiply
    8,183.86x = 11,289.86 × 5,532.20
  4. Step 4: Simplify right side
    8,183.86x = 62,457,763.49
  5. Step 5: Solve for x
    x = 62,457,763.49/8,183.86
  6. Step 6: Final answer
    x = 7,631.82

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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.