Home / 9,126.96-13,690.84-3,579.80

Finding the Fourth Proportional to 9,126.96, 13,690.84 and 3,579.80

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Solution

The fourth proportional to 9,126.96, 13,690.84 and 3,579.80 is: 5,369.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,126.96 : 13,690.84 = 3,579.80 : x
  2. Step 2: Convert to fraction form
    9,126.96/13,690.84 = 3,579.80/x
  3. Step 3: Cross multiply
    9,126.96x = 13,690.84 × 3,579.80
  4. Step 4: Simplify right side
    9,126.96x = 49,010,469.03
  5. Step 5: Solve for x
    x = 49,010,469.03/9,126.96
  6. Step 6: Final answer
    x = 5,369.86

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1.5x scale

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.