Home / 13,828.62-20,742.84-8,283.54

Finding the Fourth Proportional to 13,828.62, 20,742.84 and 8,283.54

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Solution

The fourth proportional to 13,828.62, 20,742.84 and 8,283.54 is: 12,425.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828.62 : 20,742.84 = 8,283.54 : x
  2. Step 2: Convert to fraction form
    13,828.62/20,742.84 = 8,283.54/x
  3. Step 3: Cross multiply
    13,828.62x = 20,742.84 × 8,283.54
  4. Step 4: Simplify right side
    13,828.62x = 171,824,144.85
  5. Step 5: Solve for x
    x = 171,824,144.85/13,828.62
  6. Step 6: Final answer
    x = 12,425.26

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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.