Home / 13,786.06-19,016.23-12,021.90

Finding the Fourth Proportional to 13,786.06, 19,016.23 and 12,021.90

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Solution

The fourth proportional to 13,786.06, 19,016.23 and 12,021.90 is: 16,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.06 : 19,016.23 = 12,021.90 : x
  2. Step 2: Convert to fraction form
    13,786.06/19,016.23 = 12,021.90/x
  3. Step 3: Cross multiply
    13,786.06x = 19,016.23 × 12,021.90
  4. Step 4: Simplify right side
    13,786.06x = 228,611,215.44
  5. Step 5: Solve for x
    x = 228,611,215.44/13,786.06
  6. Step 6: Final answer
    x = 16,582.78

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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.