Home / 15,105.74-20,847.24-8,392.73

Finding the Fourth Proportional to 15,105.74, 20,847.24 and 8,392.73

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Solution

The fourth proportional to 15,105.74, 20,847.24 and 8,392.73 is: 11,582.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,105.74 : 20,847.24 = 8,392.73 : x
  2. Step 2: Convert to fraction form
    15,105.74/20,847.24 = 8,392.73/x
  3. Step 3: Cross multiply
    15,105.74x = 20,847.24 × 8,392.73
  4. Step 4: Simplify right side
    15,105.74x = 174,965,152.33
  5. Step 5: Solve for x
    x = 174,965,152.33/15,105.74
  6. Step 6: Final answer
    x = 11,582.70

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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.