Home / 18,261.37-27,343.09-12,702.97

Finding the Fourth Proportional to 18,261.37, 27,343.09 and 12,702.97

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Solution

The fourth proportional to 18,261.37, 27,343.09 and 12,702.97 is: 19,020.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,261.37 : 27,343.09 = 12,702.97 : x
  2. Step 2: Convert to fraction form
    18,261.37/27,343.09 = 12,702.97/x
  3. Step 3: Cross multiply
    18,261.37x = 27,343.09 × 12,702.97
  4. Step 4: Simplify right side
    18,261.37x = 347,338,451.98
  5. Step 5: Solve for x
    x = 347,338,451.98/18,261.37
  6. Step 6: Final answer
    x = 19,020.39

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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.