Home / 12,843.14-19,270.68-5,449.34

Finding the Fourth Proportional to 12,843.14, 19,270.68 and 5,449.34

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Solution

The fourth proportional to 12,843.14, 19,270.68 and 5,449.34 is: 8,176.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843.14 : 19,270.68 = 5,449.34 : x
  2. Step 2: Convert to fraction form
    12,843.14/19,270.68 = 5,449.34/x
  3. Step 3: Cross multiply
    12,843.14x = 19,270.68 × 5,449.34
  4. Step 4: Simplify right side
    12,843.14x = 105,012,487.35
  5. Step 5: Solve for x
    x = 105,012,487.35/12,843.14
  6. Step 6: Final answer
    x = 8,176.54

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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.