Home / 13,935.44-20,917.94-12,342.92

Finding the Fourth Proportional to 13,935.44, 20,917.94 and 12,342.92

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Solution

The fourth proportional to 13,935.44, 20,917.94 and 12,342.92 is: 18,527.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.44 : 20,917.94 = 12,342.92 : x
  2. Step 2: Convert to fraction form
    13,935.44/20,917.94 = 12,342.92/x
  3. Step 3: Cross multiply
    13,935.44x = 20,917.94 × 12,342.92
  4. Step 4: Simplify right side
    13,935.44x = 258,188,459.98
  5. Step 5: Solve for x
    x = 258,188,459.98/13,935.44
  6. Step 6: Final answer
    x = 18,527.47

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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.