Home / 19,269.12-28,905.99-6,786.56

Finding the Fourth Proportional to 19,269.12, 28,905.99 and 6,786.56

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Solution

The fourth proportional to 19,269.12, 28,905.99 and 6,786.56 is: 10,180.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,269.12 : 28,905.99 = 6,786.56 : x
  2. Step 2: Convert to fraction form
    19,269.12/28,905.99 = 6,786.56/x
  3. Step 3: Cross multiply
    19,269.12x = 28,905.99 × 6,786.56
  4. Step 4: Simplify right side
    19,269.12x = 196,172,235.49
  5. Step 5: Solve for x
    x = 196,172,235.49/19,269.12
  6. Step 6: Final answer
    x = 10,180.65

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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.