Home / 8,919.86-13,378.37-2,996.12

Finding the Fourth Proportional to 8,919.86, 13,378.37 and 2,996.12

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Solution

The fourth proportional to 8,919.86, 13,378.37 and 2,996.12 is: 4,493.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.86 : 13,378.37 = 2,996.12 : x
  2. Step 2: Convert to fraction form
    8,919.86/13,378.37 = 2,996.12/x
  3. Step 3: Cross multiply
    8,919.86x = 13,378.37 × 2,996.12
  4. Step 4: Simplify right side
    8,919.86x = 40,083,220.39
  5. Step 5: Solve for x
    x = 40,083,220.39/8,919.86
  6. Step 6: Final answer
    x = 4,493.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.