Home / 11,239.29-16,859.24-2,919.12

Finding the Fourth Proportional to 11,239.29, 16,859.24 and 2,919.12

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Solution

The fourth proportional to 11,239.29, 16,859.24 and 2,919.12 is: 4,378.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.29 : 16,859.24 = 2,919.12 : x
  2. Step 2: Convert to fraction form
    11,239.29/16,859.24 = 2,919.12/x
  3. Step 3: Cross multiply
    11,239.29x = 16,859.24 × 2,919.12
  4. Step 4: Simplify right side
    11,239.29x = 49,214,144.67
  5. Step 5: Solve for x
    x = 49,214,144.67/11,239.29
  6. Step 6: Final answer
    x = 4,378.76

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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.