Home / 13,991.09-19,309.37-8,022.74

Finding the Fourth Proportional to 13,991.09, 19,309.37 and 8,022.74

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Solution

The fourth proportional to 13,991.09, 19,309.37 and 8,022.74 is: 11,072.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.09 : 19,309.37 = 8,022.74 : x
  2. Step 2: Convert to fraction form
    13,991.09/19,309.37 = 8,022.74/x
  3. Step 3: Cross multiply
    13,991.09x = 19,309.37 × 8,022.74
  4. Step 4: Simplify right side
    13,991.09x = 154,913,918.41
  5. Step 5: Solve for x
    x = 154,913,918.41/13,991.09
  6. Step 6: Final answer
    x = 11,072.33

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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.