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Finding the Fourth Proportional to 12,687.26, 19,033.77 and 6,843.74

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Solution

The fourth proportional to 12,687.26, 19,033.77 and 6,843.74 is: 10,267.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687.26 : 19,033.77 = 6,843.74 : x
  2. Step 2: Convert to fraction form
    12,687.26/19,033.77 = 6,843.74/x
  3. Step 3: Cross multiply
    12,687.26x = 19,033.77 × 6,843.74
  4. Step 4: Simplify right side
    12,687.26x = 130,262,173.10
  5. Step 5: Solve for x
    x = 130,262,173.10/12,687.26
  6. Step 6: Final answer
    x = 10,267.16

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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.