Home / 13,293.85-19,940.81-12,481.93

Finding the Fourth Proportional to 13,293.85, 19,940.81 and 12,481.93

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Solution

The fourth proportional to 13,293.85, 19,940.81 and 12,481.93 is: 18,722.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.85 : 19,940.81 = 12,481.93 : x
  2. Step 2: Convert to fraction form
    13,293.85/19,940.81 = 12,481.93/x
  3. Step 3: Cross multiply
    13,293.85x = 19,940.81 × 12,481.93
  4. Step 4: Simplify right side
    13,293.85x = 248,899,794.56
  5. Step 5: Solve for x
    x = 248,899,794.56/13,293.85
  6. Step 6: Final answer
    x = 18,722.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.