Home / 14,091.44-21,129.84-6,190.72

Finding the Fourth Proportional to 14,091.44, 21,129.84 and 6,190.72

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Solution

The fourth proportional to 14,091.44, 21,129.84 and 6,190.72 is: 9,282.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091.44 : 21,129.84 = 6,190.72 : x
  2. Step 2: Convert to fraction form
    14,091.44/21,129.84 = 6,190.72/x
  3. Step 3: Cross multiply
    14,091.44x = 21,129.84 × 6,190.72
  4. Step 4: Simplify right side
    14,091.44x = 130,808,923.08
  5. Step 5: Solve for x
    x = 130,808,923.08/14,091.44
  6. Step 6: Final answer
    x = 9,282.86

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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.