Home / 13,293.60-19,940.43-12,481.68

Finding the Fourth Proportional to 13,293.60, 19,940.43 and 12,481.68

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Solution

The fourth proportional to 13,293.60, 19,940.43 and 12,481.68 is: 18,722.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.60 : 19,940.43 = 12,481.68 : x
  2. Step 2: Convert to fraction form
    13,293.60/19,940.43 = 12,481.68/x
  3. Step 3: Cross multiply
    13,293.60x = 19,940.43 × 12,481.68
  4. Step 4: Simplify right side
    13,293.60x = 248,890,066.32
  5. Step 5: Solve for x
    x = 248,890,066.32/13,293.60
  6. Step 6: Final answer
    x = 18,722.55

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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.