Home / 11,919.74-16,439.92-8,333.51

Finding the Fourth Proportional to 11,919.74, 16,439.92 and 8,333.51

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Solution

The fourth proportional to 11,919.74, 16,439.92 and 8,333.51 is: 11,493.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,919.74 : 16,439.92 = 8,333.51 : x
  2. Step 2: Convert to fraction form
    11,919.74/16,439.92 = 8,333.51/x
  3. Step 3: Cross multiply
    11,919.74x = 16,439.92 × 8,333.51
  4. Step 4: Simplify right side
    11,919.74x = 137,002,134.69
  5. Step 5: Solve for x
    x = 137,002,134.69/11,919.74
  6. Step 6: Final answer
    x = 11,493.72

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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.