Home / 18,841.86-25,996.44-12,131.37

Finding the Fourth Proportional to 18,841.86, 25,996.44 and 12,131.37

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Solution

The fourth proportional to 18,841.86, 25,996.44 and 12,131.37 is: 16,737.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,841.86 : 25,996.44 = 12,131.37 : x
  2. Step 2: Convert to fraction form
    18,841.86/25,996.44 = 12,131.37/x
  3. Step 3: Cross multiply
    18,841.86x = 25,996.44 × 12,131.37
  4. Step 4: Simplify right side
    18,841.86x = 315,372,432.32
  5. Step 5: Solve for x
    x = 315,372,432.32/18,841.86
  6. Step 6: Final answer
    x = 16,737.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.