Home / 8,219.82-12,334.44-3,475.60

Finding the Fourth Proportional to 8,219.82, 12,334.44 and 3,475.60

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Solution

The fourth proportional to 8,219.82, 12,334.44 and 3,475.60 is: 5,215.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.82 : 12,334.44 = 3,475.60 : x
  2. Step 2: Convert to fraction form
    8,219.82/12,334.44 = 3,475.60/x
  3. Step 3: Cross multiply
    8,219.82x = 12,334.44 × 3,475.60
  4. Step 4: Simplify right side
    8,219.82x = 42,869,579.66
  5. Step 5: Solve for x
    x = 42,869,579.66/8,219.82
  6. Step 6: Final answer
    x = 5,215.39

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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.