Home / 13,764.94-20,648.43-3,905.01

Finding the Fourth Proportional to 13,764.94, 20,648.43 and 3,905.01

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Solution

The fourth proportional to 13,764.94, 20,648.43 and 3,905.01 is: 5,857.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.94 : 20,648.43 = 3,905.01 : x
  2. Step 2: Convert to fraction form
    13,764.94/20,648.43 = 3,905.01/x
  3. Step 3: Cross multiply
    13,764.94x = 20,648.43 × 3,905.01
  4. Step 4: Simplify right side
    13,764.94x = 80,632,325.63
  5. Step 5: Solve for x
    x = 80,632,325.63/13,764.94
  6. Step 6: Final answer
    x = 5,857.81

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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.