Home / 8,153.62-12,219.48-4,450.30

Finding the Fourth Proportional to 8,153.62, 12,219.48 and 4,450.30

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Solution

The fourth proportional to 8,153.62, 12,219.48 and 4,450.30 is: 6,669.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,153.62 : 12,219.48 = 4,450.30 : x
  2. Step 2: Convert to fraction form
    8,153.62/12,219.48 = 4,450.30/x
  3. Step 3: Cross multiply
    8,153.62x = 12,219.48 × 4,450.30
  4. Step 4: Simplify right side
    8,153.62x = 54,380,351.84
  5. Step 5: Solve for x
    x = 54,380,351.84/8,153.62
  6. Step 6: Final answer
    x = 6,669.47

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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.