Home / 7,986.04-11,981.44-5,769.88

Finding the Fourth Proportional to 7,986.04, 11,981.44 and 5,769.88

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Solution

The fourth proportional to 7,986.04, 11,981.44 and 5,769.88 is: 8,656.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.04 : 11,981.44 = 5,769.88 : x
  2. Step 2: Convert to fraction form
    7,986.04/11,981.44 = 5,769.88/x
  3. Step 3: Cross multiply
    7,986.04x = 11,981.44 × 5,769.88
  4. Step 4: Simplify right side
    7,986.04x = 69,131,471.03
  5. Step 5: Solve for x
    x = 69,131,471.03/7,986.04
  6. Step 6: Final answer
    x = 8,656.54

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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.