Home / 7,819.47-11,710.98-3,863.43

Finding the Fourth Proportional to 7,819.47, 11,710.98 and 3,863.43

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Solution

The fourth proportional to 7,819.47, 11,710.98 and 3,863.43 is: 5,786.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.47 : 11,710.98 = 3,863.43 : x
  2. Step 2: Convert to fraction form
    7,819.47/11,710.98 = 3,863.43/x
  3. Step 3: Cross multiply
    7,819.47x = 11,710.98 × 3,863.43
  4. Step 4: Simplify right side
    7,819.47x = 45,244,551.46
  5. Step 5: Solve for x
    x = 45,244,551.46/7,819.47
  6. Step 6: Final answer
    x = 5,786.14

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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.