Home / 7,991.74-11,028.03-4,805.56

Finding the Fourth Proportional to 7,991.74, 11,028.03 and 4,805.56

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Solution

The fourth proportional to 7,991.74, 11,028.03 and 4,805.56 is: 6,631.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.74 : 11,028.03 = 4,805.56 : x
  2. Step 2: Convert to fraction form
    7,991.74/11,028.03 = 4,805.56/x
  3. Step 3: Cross multiply
    7,991.74x = 11,028.03 × 4,805.56
  4. Step 4: Simplify right side
    7,991.74x = 52,995,859.85
  5. Step 5: Solve for x
    x = 52,995,859.85/7,991.74
  6. Step 6: Final answer
    x = 6,631.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.