Home / 11,239.74-16,859.61-2,919.06

Finding the Fourth Proportional to 11,239.74, 16,859.61 and 2,919.06

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Solution

The fourth proportional to 11,239.74, 16,859.61 and 2,919.06 is: 4,378.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.74 : 16,859.61 = 2,919.06 : x
  2. Step 2: Convert to fraction form
    11,239.74/16,859.61 = 2,919.06/x
  3. Step 3: Cross multiply
    11,239.74x = 16,859.61 × 2,919.06
  4. Step 4: Simplify right side
    11,239.74x = 49,214,213.17
  5. Step 5: Solve for x
    x = 49,214,213.17/11,239.74
  6. Step 6: Final answer
    x = 4,378.59

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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.