Home / 7,968.16-11,952.24-2,124.79

Finding the Fourth Proportional to 7,968.16, 11,952.24 and 2,124.79

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Solution

The fourth proportional to 7,968.16, 11,952.24 and 2,124.79 is: 3,187.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,968.16 : 11,952.24 = 2,124.79 : x
  2. Step 2: Convert to fraction form
    7,968.16/11,952.24 = 2,124.79/x
  3. Step 3: Cross multiply
    7,968.16x = 11,952.24 × 2,124.79
  4. Step 4: Simplify right side
    7,968.16x = 25,396,000.03
  5. Step 5: Solve for x
    x = 25,396,000.03/7,968.16
  6. Step 6: Final answer
    x = 3,187.19

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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.