Home / 13,989.11-20,984.06-5,222.27

Finding the Fourth Proportional to 13,989.11, 20,984.06 and 5,222.27

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Solution

The fourth proportional to 13,989.11, 20,984.06 and 5,222.27 is: 7,833.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.11 : 20,984.06 = 5,222.27 : x
  2. Step 2: Convert to fraction form
    13,989.11/20,984.06 = 5,222.27/x
  3. Step 3: Cross multiply
    13,989.11x = 20,984.06 × 5,222.27
  4. Step 4: Simplify right side
    13,989.11x = 109,584,492.53
  5. Step 5: Solve for x
    x = 109,584,492.53/13,989.11
  6. Step 6: Final answer
    x = 7,833.56

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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.