Home / 10,219.91-14,104.13-5,743.85

Finding the Fourth Proportional to 10,219.91, 14,104.13 and 5,743.85

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Solution

The fourth proportional to 10,219.91, 14,104.13 and 5,743.85 is: 7,926.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219.91 : 14,104.13 = 5,743.85 : x
  2. Step 2: Convert to fraction form
    10,219.91/14,104.13 = 5,743.85/x
  3. Step 3: Cross multiply
    10,219.91x = 14,104.13 × 5,743.85
  4. Step 4: Simplify right side
    10,219.91x = 81,011,907.86
  5. Step 5: Solve for x
    x = 81,011,907.86/10,219.91
  6. Step 6: Final answer
    x = 7,926.87

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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.