Home / 7,921.08-11,879.22-3,303

Finding the Fourth Proportional to 7,921.08, 11,879.22 and 3,303

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Solution

The fourth proportional to 7,921.08, 11,879.22 and 3,303 is: 4,953.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.08 : 11,879.22 = 3,303 : x
  2. Step 2: Convert to fraction form
    7,921.08/11,879.22 = 3,303/x
  3. Step 3: Cross multiply
    7,921.08x = 11,879.22 × 3,303
  4. Step 4: Simplify right side
    7,921.08x = 39,237,063.66
  5. Step 5: Solve for x
    x = 39,237,063.66/7,921.08
  6. Step 6: Final answer
    x = 4,953.50

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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.