Home / 13,684.96-20,502.82-12,725.41

Finding the Fourth Proportional to 13,684.96, 20,502.82 and 12,725.41

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Solution

The fourth proportional to 13,684.96, 20,502.82 and 12,725.41 is: 19,065.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684.96 : 20,502.82 = 12,725.41 : x
  2. Step 2: Convert to fraction form
    13,684.96/20,502.82 = 12,725.41/x
  3. Step 3: Cross multiply
    13,684.96x = 20,502.82 × 12,725.41
  4. Step 4: Simplify right side
    13,684.96x = 260,906,790.66
  5. Step 5: Solve for x
    x = 260,906,790.66/13,684.96
  6. Step 6: Final answer
    x = 19,065.22

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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.