Home / 12,843.18-19,262.34-4,078.17

Finding the Fourth Proportional to 12,843.18, 19,262.34 and 4,078.17

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Solution

The fourth proportional to 12,843.18, 19,262.34 and 4,078.17 is: 6,116.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843.18 : 19,262.34 = 4,078.17 : x
  2. Step 2: Convert to fraction form
    12,843.18/19,262.34 = 4,078.17/x
  3. Step 3: Cross multiply
    12,843.18x = 19,262.34 × 4,078.17
  4. Step 4: Simplify right side
    12,843.18x = 78,555,097.12
  5. Step 5: Solve for x
    x = 78,555,097.12/12,843.18
  6. Step 6: Final answer
    x = 6,116.48

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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.