Home / 7,863.18-11,795.40-2,019.78

Finding the Fourth Proportional to 7,863.18, 11,795.40 and 2,019.78

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Solution

The fourth proportional to 7,863.18, 11,795.40 and 2,019.78 is: 3,029.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863.18 : 11,795.40 = 2,019.78 : x
  2. Step 2: Convert to fraction form
    7,863.18/11,795.40 = 2,019.78/x
  3. Step 3: Cross multiply
    7,863.18x = 11,795.40 × 2,019.78
  4. Step 4: Simplify right side
    7,863.18x = 23,824,113.01
  5. Step 5: Solve for x
    x = 23,824,113.01/7,863.18
  6. Step 6: Final answer
    x = 3,029.83

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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.