Home / 13,723.06-18,923.94-12,205.83

Finding the Fourth Proportional to 13,723.06, 18,923.94 and 12,205.83

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Solution

The fourth proportional to 13,723.06, 18,923.94 and 12,205.83 is: 16,831.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.06 : 18,923.94 = 12,205.83 : x
  2. Step 2: Convert to fraction form
    13,723.06/18,923.94 = 12,205.83/x
  3. Step 3: Cross multiply
    13,723.06x = 18,923.94 × 12,205.83
  4. Step 4: Simplify right side
    13,723.06x = 230,982,394.57
  5. Step 5: Solve for x
    x = 230,982,394.57/13,723.06
  6. Step 6: Final answer
    x = 16,831.70

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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.