Home / 13,786.25-20,682.84-4,427.10

Finding the Fourth Proportional to 13,786.25, 20,682.84 and 4,427.10

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Solution

The fourth proportional to 13,786.25, 20,682.84 and 4,427.10 is: 6,641.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.25 : 20,682.84 = 4,427.10 : x
  2. Step 2: Convert to fraction form
    13,786.25/20,682.84 = 4,427.10/x
  3. Step 3: Cross multiply
    13,786.25x = 20,682.84 × 4,427.10
  4. Step 4: Simplify right side
    13,786.25x = 91,565,000.96
  5. Step 5: Solve for x
    x = 91,565,000.96/13,786.25
  6. Step 6: Final answer
    x = 6,641.77

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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.