Home / 13,722.06-18,936.26-8,055.80

Finding the Fourth Proportional to 13,722.06, 18,936.26 and 8,055.80

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Solution

The fourth proportional to 13,722.06, 18,936.26 and 8,055.80 is: 11,116.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.06 : 18,936.26 = 8,055.80 : x
  2. Step 2: Convert to fraction form
    13,722.06/18,936.26 = 8,055.80/x
  3. Step 3: Cross multiply
    13,722.06x = 18,936.26 × 8,055.80
  4. Step 4: Simplify right side
    13,722.06x = 152,546,723.31
  5. Step 5: Solve for x
    x = 152,546,723.31/13,722.06
  6. Step 6: Final answer
    x = 11,116.90

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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.