Home / 14,942.86-20,620.41-8,229.07

Finding the Fourth Proportional to 14,942.86, 20,620.41 and 8,229.07

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Solution

The fourth proportional to 14,942.86, 20,620.41 and 8,229.07 is: 11,355.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,942.86 : 20,620.41 = 8,229.07 : x
  2. Step 2: Convert to fraction form
    14,942.86/20,620.41 = 8,229.07/x
  3. Step 3: Cross multiply
    14,942.86x = 20,620.41 × 8,229.07
  4. Step 4: Simplify right side
    14,942.86x = 169,686,792.24
  5. Step 5: Solve for x
    x = 169,686,792.24/14,942.86
  6. Step 6: Final answer
    x = 11,355.71

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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.