Home / 13,293.35-19,940.06-12,481.43

Finding the Fourth Proportional to 13,293.35, 19,940.06 and 12,481.43

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Solution

The fourth proportional to 13,293.35, 19,940.06 and 12,481.43 is: 18,722.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.35 : 19,940.06 = 12,481.43 : x
  2. Step 2: Convert to fraction form
    13,293.35/19,940.06 = 12,481.43/x
  3. Step 3: Cross multiply
    13,293.35x = 19,940.06 × 12,481.43
  4. Step 4: Simplify right side
    13,293.35x = 248,880,463.09
  5. Step 5: Solve for x
    x = 248,880,463.09/13,293.35
  6. Step 6: Final answer
    x = 18,722.18

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1.5x scale

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.