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Finding the Fourth Proportional to 8,900.62, 13,350.93 and 3,355.21

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Solution

The fourth proportional to 8,900.62, 13,350.93 and 3,355.21 is: 5,032.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.62 : 13,350.93 = 3,355.21 : x
  2. Step 2: Convert to fraction form
    8,900.62/13,350.93 = 3,355.21/x
  3. Step 3: Cross multiply
    8,900.62x = 13,350.93 × 3,355.21
  4. Step 4: Simplify right side
    8,900.62x = 44,795,173.85
  5. Step 5: Solve for x
    x = 44,795,173.85/8,900.62
  6. Step 6: Final answer
    x = 5,032.82

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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.