Home / 15,183.47-20,953.22-8,469.53

Finding the Fourth Proportional to 15,183.47, 20,953.22 and 8,469.53

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Solution

The fourth proportional to 15,183.47, 20,953.22 and 8,469.53 is: 11,687.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,183.47 : 20,953.22 = 8,469.53 : x
  2. Step 2: Convert to fraction form
    15,183.47/20,953.22 = 8,469.53/x
  3. Step 3: Cross multiply
    15,183.47x = 20,953.22 × 8,469.53
  4. Step 4: Simplify right side
    15,183.47x = 177,463,925.39
  5. Step 5: Solve for x
    x = 177,463,925.39/15,183.47
  6. Step 6: Final answer
    x = 11,687.97

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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.