Home / 9,190.16-12,682.41-5,211.27

Finding the Fourth Proportional to 9,190.16, 12,682.41 and 5,211.27

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Solution

The fourth proportional to 9,190.16, 12,682.41 and 5,211.27 is: 7,191.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.16 : 12,682.41 = 5,211.27 : x
  2. Step 2: Convert to fraction form
    9,190.16/12,682.41 = 5,211.27/x
  3. Step 3: Cross multiply
    9,190.16x = 12,682.41 × 5,211.27
  4. Step 4: Simplify right side
    9,190.16x = 66,091,399.35
  5. Step 5: Solve for x
    x = 66,091,399.35/9,190.16
  6. Step 6: Final answer
    x = 7,191.54

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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.