Home / 13,914.70-20,872.05-4,054.75

Finding the Fourth Proportional to 13,914.70, 20,872.05 and 4,054.75

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Solution

The fourth proportional to 13,914.70, 20,872.05 and 4,054.75 is: 6,082.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.70 : 20,872.05 = 4,054.75 : x
  2. Step 2: Convert to fraction form
    13,914.70/20,872.05 = 4,054.75/x
  3. Step 3: Cross multiply
    13,914.70x = 20,872.05 × 4,054.75
  4. Step 4: Simplify right side
    13,914.70x = 84,630,944.74
  5. Step 5: Solve for x
    x = 84,630,944.74/13,914.70
  6. Step 6: Final answer
    x = 6,082.13

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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.