Home / 18,786.24-28,191.66-7,099.46

Finding the Fourth Proportional to 18,786.24, 28,191.66 and 7,099.46

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Solution

The fourth proportional to 18,786.24, 28,191.66 and 7,099.46 is: 10,653.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.24 : 28,191.66 = 7,099.46 : x
  2. Step 2: Convert to fraction form
    18,786.24/28,191.66 = 7,099.46/x
  3. Step 3: Cross multiply
    18,786.24x = 28,191.66 × 7,099.46
  4. Step 4: Simplify right side
    18,786.24x = 200,145,492.02
  5. Step 5: Solve for x
    x = 200,145,492.02/18,786.24
  6. Step 6: Final answer
    x = 10,653.84

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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.