Home / 12,843.69-19,267.07-5,447.18

Finding the Fourth Proportional to 12,843.69, 19,267.07 and 5,447.18

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Solution

The fourth proportional to 12,843.69, 19,267.07 and 5,447.18 is: 8,171.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843.69 : 19,267.07 = 5,447.18 : x
  2. Step 2: Convert to fraction form
    12,843.69/19,267.07 = 5,447.18/x
  3. Step 3: Cross multiply
    12,843.69x = 19,267.07 × 5,447.18
  4. Step 4: Simplify right side
    12,843.69x = 104,951,219.29
  5. Step 5: Solve for x
    x = 104,951,219.29/12,843.69
  6. Step 6: Final answer
    x = 8,171.43

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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.