Home / 15,183.60-20,953.39-8,469.66

Finding the Fourth Proportional to 15,183.60, 20,953.39 and 8,469.66

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Solution

The fourth proportional to 15,183.60, 20,953.39 and 8,469.66 is: 11,688.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,183.60 : 20,953.39 = 8,469.66 : x
  2. Step 2: Convert to fraction form
    15,183.60/20,953.39 = 8,469.66/x
  3. Step 3: Cross multiply
    15,183.60x = 20,953.39 × 8,469.66
  4. Step 4: Simplify right side
    15,183.60x = 177,468,089.15
  5. Step 5: Solve for x
    x = 177,468,089.15/15,183.60
  6. Step 6: Final answer
    x = 11,688.14

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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.