Home / 19,400.80-26,723.24-13,725.76

Finding the Fourth Proportional to 19,400.80, 26,723.24 and 13,725.76

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Solution

The fourth proportional to 19,400.80, 26,723.24 and 13,725.76 is: 18,906.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,400.80 : 26,723.24 = 13,725.76 : x
  2. Step 2: Convert to fraction form
    19,400.80/26,723.24 = 13,725.76/x
  3. Step 3: Cross multiply
    19,400.80x = 26,723.24 × 13,725.76
  4. Step 4: Simplify right side
    19,400.80x = 366,796,778.66
  5. Step 5: Solve for x
    x = 366,796,778.66/19,400.80
  6. Step 6: Final answer
    x = 18,906.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.