Home / 14,286.44-19,667.64-12,288.98

Finding the Fourth Proportional to 14,286.44, 19,667.64 and 12,288.98

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Solution

The fourth proportional to 14,286.44, 19,667.64 and 12,288.98 is: 16,917.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.44 : 19,667.64 = 12,288.98 : x
  2. Step 2: Convert to fraction form
    14,286.44/19,667.64 = 12,288.98/x
  3. Step 3: Cross multiply
    14,286.44x = 19,667.64 × 12,288.98
  4. Step 4: Simplify right side
    14,286.44x = 241,695,234.61
  5. Step 5: Solve for x
    x = 241,695,234.61/14,286.44
  6. Step 6: Final answer
    x = 16,917.81

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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.