Home / 13,752.44-20,629.46-3,890.89

Finding the Fourth Proportional to 13,752.44, 20,629.46 and 3,890.89

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Solution

The fourth proportional to 13,752.44, 20,629.46 and 3,890.89 is: 5,836.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752.44 : 20,629.46 = 3,890.89 : x
  2. Step 2: Convert to fraction form
    13,752.44/20,629.46 = 3,890.89/x
  3. Step 3: Cross multiply
    13,752.44x = 20,629.46 × 3,890.89
  4. Step 4: Simplify right side
    13,752.44x = 80,266,940.16
  5. Step 5: Solve for x
    x = 80,266,940.16/13,752.44
  6. Step 6: Final answer
    x = 5,836.56

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1.5x scale

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.