Home / 11,423.70-17,121.84-5,879.66

Finding the Fourth Proportional to 11,423.70, 17,121.84 and 5,879.66

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Solution

The fourth proportional to 11,423.70, 17,121.84 and 5,879.66 is: 8,812.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,423.70 : 17,121.84 = 5,879.66 : x
  2. Step 2: Convert to fraction form
    11,423.70/17,121.84 = 5,879.66/x
  3. Step 3: Cross multiply
    11,423.70x = 17,121.84 × 5,879.66
  4. Step 4: Simplify right side
    11,423.70x = 100,670,597.77
  5. Step 5: Solve for x
    x = 100,670,597.77/11,423.70
  6. Step 6: Final answer
    x = 8,812.43

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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.