Home / 13,845.26-20,771.18-4,485.28

Finding the Fourth Proportional to 13,845.26, 20,771.18 and 4,485.28

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Solution

The fourth proportional to 13,845.26, 20,771.18 and 4,485.28 is: 6,728.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.26 : 20,771.18 = 4,485.28 : x
  2. Step 2: Convert to fraction form
    13,845.26/20,771.18 = 4,485.28/x
  3. Step 3: Cross multiply
    13,845.26x = 20,771.18 × 4,485.28
  4. Step 4: Simplify right side
    13,845.26x = 93,164,558.23
  5. Step 5: Solve for x
    x = 93,164,558.23/13,845.26
  6. Step 6: Final answer
    x = 6,728.99

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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.