Home / 15,183.99-20,953.85-8,469.61

Finding the Fourth Proportional to 15,183.99, 20,953.85 and 8,469.61

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Solution

The fourth proportional to 15,183.99, 20,953.85 and 8,469.61 is: 11,688.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,183.99 : 20,953.85 = 8,469.61 : x
  2. Step 2: Convert to fraction form
    15,183.99/20,953.85 = 8,469.61/x
  3. Step 3: Cross multiply
    15,183.99x = 20,953.85 × 8,469.61
  4. Step 4: Simplify right side
    15,183.99x = 177,470,937.50
  5. Step 5: Solve for x
    x = 177,470,937.50/15,183.99
  6. Step 6: Final answer
    x = 11,688.03

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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.