Home / 13,905.91-20,858.67-3,376.01

Finding the Fourth Proportional to 13,905.91, 20,858.67 and 3,376.01

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Solution

The fourth proportional to 13,905.91, 20,858.67 and 3,376.01 is: 5,063.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.91 : 20,858.67 = 3,376.01 : x
  2. Step 2: Convert to fraction form
    13,905.91/20,858.67 = 3,376.01/x
  3. Step 3: Cross multiply
    13,905.91x = 20,858.67 × 3,376.01
  4. Step 4: Simplify right side
    13,905.91x = 70,419,052.43
  5. Step 5: Solve for x
    x = 70,419,052.43/13,905.91
  6. Step 6: Final answer
    x = 5,063.97

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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.