Home / 7,873.63-11,811.07-2,608.43

Finding the Fourth Proportional to 7,873.63, 11,811.07 and 2,608.43

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Solution

The fourth proportional to 7,873.63, 11,811.07 and 2,608.43 is: 3,912.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,873.63 : 11,811.07 = 2,608.43 : x
  2. Step 2: Convert to fraction form
    7,873.63/11,811.07 = 2,608.43/x
  3. Step 3: Cross multiply
    7,873.63x = 11,811.07 × 2,608.43
  4. Step 4: Simplify right side
    7,873.63x = 30,808,349.32
  5. Step 5: Solve for x
    x = 30,808,349.32/7,873.63
  6. Step 6: Final answer
    x = 3,912.85

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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.