Home / 6,986.82-10,470.97-5,129.25

Finding the Fourth Proportional to 6,986.82, 10,470.97 and 5,129.25

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Solution

The fourth proportional to 6,986.82, 10,470.97 and 5,129.25 is: 7,687.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.82 : 10,470.97 = 5,129.25 : x
  2. Step 2: Convert to fraction form
    6,986.82/10,470.97 = 5,129.25/x
  3. Step 3: Cross multiply
    6,986.82x = 10,470.97 × 5,129.25
  4. Step 4: Simplify right side
    6,986.82x = 53,708,222.87
  5. Step 5: Solve for x
    x = 53,708,222.87/6,986.82
  6. Step 6: Final answer
    x = 7,687.08

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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.