Home / 12,121.04-18,181.52-3,355.92

Finding the Fourth Proportional to 12,121.04, 18,181.52 and 3,355.92

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Solution

The fourth proportional to 12,121.04, 18,181.52 and 3,355.92 is: 5,033.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,121.04 : 18,181.52 = 3,355.92 : x
  2. Step 2: Convert to fraction form
    12,121.04/18,181.52 = 3,355.92/x
  3. Step 3: Cross multiply
    12,121.04x = 18,181.52 × 3,355.92
  4. Step 4: Simplify right side
    12,121.04x = 61,015,734.99
  5. Step 5: Solve for x
    x = 61,015,734.99/12,121.04
  6. Step 6: Final answer
    x = 5,033.87

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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.