Home / 7,942.08-11,919.20-3,328.32

Finding the Fourth Proportional to 7,942.08, 11,919.20 and 3,328.32

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Solution

The fourth proportional to 7,942.08, 11,919.20 and 3,328.32 is: 4,995.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.08 : 11,919.20 = 3,328.32 : x
  2. Step 2: Convert to fraction form
    7,942.08/11,919.20 = 3,328.32/x
  3. Step 3: Cross multiply
    7,942.08x = 11,919.20 × 3,328.32
  4. Step 4: Simplify right side
    7,942.08x = 39,670,911.74
  5. Step 5: Solve for x
    x = 39,670,911.74/7,942.08
  6. Step 6: Final answer
    x = 4,995.03

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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.