Home / 7,991.98-11,029.07-4,454.81

Finding the Fourth Proportional to 7,991.98, 11,029.07 and 4,454.81

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Solution

The fourth proportional to 7,991.98, 11,029.07 and 4,454.81 is: 6,147.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.98 : 11,029.07 = 4,454.81 : x
  2. Step 2: Convert to fraction form
    7,991.98/11,029.07 = 4,454.81/x
  3. Step 3: Cross multiply
    7,991.98x = 11,029.07 × 4,454.81
  4. Step 4: Simplify right side
    7,991.98x = 49,132,367.32
  5. Step 5: Solve for x
    x = 49,132,367.32/7,991.98
  6. Step 6: Final answer
    x = 6,147.71

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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.