Home / 8,211.80-12,293.40-5,441.60

Finding the Fourth Proportional to 8,211.80, 12,293.40 and 5,441.60

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Solution

The fourth proportional to 8,211.80, 12,293.40 and 5,441.60 is: 8,146.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,211.80 : 12,293.40 = 5,441.60 : x
  2. Step 2: Convert to fraction form
    8,211.80/12,293.40 = 5,441.60/x
  3. Step 3: Cross multiply
    8,211.80x = 12,293.40 × 5,441.60
  4. Step 4: Simplify right side
    8,211.80x = 66,895,765.44
  5. Step 5: Solve for x
    x = 66,895,765.44/8,211.80
  6. Step 6: Final answer
    x = 8,146.30

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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.