Home / 13,774.66-20,661.96-3,914.04

Finding the Fourth Proportional to 13,774.66, 20,661.96 and 3,914.04

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Solution

The fourth proportional to 13,774.66, 20,661.96 and 3,914.04 is: 5,871.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,774.66 : 20,661.96 = 3,914.04 : x
  2. Step 2: Convert to fraction form
    13,774.66/20,661.96 = 3,914.04/x
  3. Step 3: Cross multiply
    13,774.66x = 20,661.96 × 3,914.04
  4. Step 4: Simplify right side
    13,774.66x = 80,871,737.92
  5. Step 5: Solve for x
    x = 80,871,737.92/13,774.66
  6. Step 6: Final answer
    x = 5,871.05

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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.