Home / 13,914.82-20,875.38-7,994.44

Finding the Fourth Proportional to 13,914.82, 20,875.38 and 7,994.44

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Solution

The fourth proportional to 13,914.82, 20,875.38 and 7,994.44 is: 11,993.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.82 : 20,875.38 = 7,994.44 : x
  2. Step 2: Convert to fraction form
    13,914.82/20,875.38 = 7,994.44/x
  3. Step 3: Cross multiply
    13,914.82x = 20,875.38 × 7,994.44
  4. Step 4: Simplify right side
    13,914.82x = 166,886,972.89
  5. Step 5: Solve for x
    x = 166,886,972.89/13,914.82
  6. Step 6: Final answer
    x = 11,993.47

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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.