Home / 13,410.06-20,195.40-12,212.97

Finding the Fourth Proportional to 13,410.06, 20,195.40 and 12,212.97

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Solution

The fourth proportional to 13,410.06, 20,195.40 and 12,212.97 is: 18,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.06 : 20,195.40 = 12,212.97 : x
  2. Step 2: Convert to fraction form
    13,410.06/20,195.40 = 12,212.97/x
  3. Step 3: Cross multiply
    13,410.06x = 20,195.40 × 12,212.97
  4. Step 4: Simplify right side
    13,410.06x = 246,645,814.34
  5. Step 5: Solve for x
    x = 246,645,814.34/13,410.06
  6. Step 6: Final answer
    x = 18,392.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.