Home / 19,474.11-29,191.72-7,611.61

Finding the Fourth Proportional to 19,474.11, 29,191.72 and 7,611.61

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Solution

The fourth proportional to 19,474.11, 29,191.72 and 7,611.61 is: 11,409.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,474.11 : 29,191.72 = 7,611.61 : x
  2. Step 2: Convert to fraction form
    19,474.11/29,191.72 = 7,611.61/x
  3. Step 3: Cross multiply
    19,474.11x = 29,191.72 × 7,611.61
  4. Step 4: Simplify right side
    19,474.11x = 222,195,987.87
  5. Step 5: Solve for x
    x = 222,195,987.87/19,474.11
  6. Step 6: Final answer
    x = 11,409.81

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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.