Home / 13,724.82-18,930.51-11,619.81

Finding the Fourth Proportional to 13,724.82, 18,930.51 and 11,619.81

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Solution

The fourth proportional to 13,724.82, 18,930.51 and 11,619.81 is: 16,027.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,724.82 : 18,930.51 = 11,619.81 : x
  2. Step 2: Convert to fraction form
    13,724.82/18,930.51 = 11,619.81/x
  3. Step 3: Cross multiply
    13,724.82x = 18,930.51 × 11,619.81
  4. Step 4: Simplify right side
    13,724.82x = 219,968,929.40
  5. Step 5: Solve for x
    x = 219,968,929.40/13,724.82
  6. Step 6: Final answer
    x = 16,027.09

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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.