Home / 8,190.44-11,290.56-6,418.97

Finding the Fourth Proportional to 8,190.44, 11,290.56 and 6,418.97

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Solution

The fourth proportional to 8,190.44, 11,290.56 and 6,418.97 is: 8,848.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.44 : 11,290.56 = 6,418.97 : x
  2. Step 2: Convert to fraction form
    8,190.44/11,290.56 = 6,418.97/x
  3. Step 3: Cross multiply
    8,190.44x = 11,290.56 × 6,418.97
  4. Step 4: Simplify right side
    8,190.44x = 72,473,765.92
  5. Step 5: Solve for x
    x = 72,473,765.92/8,190.44
  6. Step 6: Final answer
    x = 8,848.58

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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.