Home / 7,921.58-11,884.61-3,968.06

Finding the Fourth Proportional to 7,921.58, 11,884.61 and 3,968.06

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Solution

The fourth proportional to 7,921.58, 11,884.61 and 3,968.06 is: 5,953.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.58 : 11,884.61 = 3,968.06 : x
  2. Step 2: Convert to fraction form
    7,921.58/11,884.61 = 3,968.06/x
  3. Step 3: Cross multiply
    7,921.58x = 11,884.61 × 3,968.06
  4. Step 4: Simplify right side
    7,921.58x = 47,158,766.29
  5. Step 5: Solve for x
    x = 47,158,766.29/7,921.58
  6. Step 6: Final answer
    x = 5,953.21

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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.