Home / 11,105.44-16,643.70-9,928.60

Finding the Fourth Proportional to 11,105.44, 16,643.70 and 9,928.60

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Solution

The fourth proportional to 11,105.44, 16,643.70 and 9,928.60 is: 14,879.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.44 : 16,643.70 = 9,928.60 : x
  2. Step 2: Convert to fraction form
    11,105.44/16,643.70 = 9,928.60/x
  3. Step 3: Cross multiply
    11,105.44x = 16,643.70 × 9,928.60
  4. Step 4: Simplify right side
    11,105.44x = 165,248,639.82
  5. Step 5: Solve for x
    x = 165,248,639.82/11,105.44
  6. Step 6: Final answer
    x = 14,879.97

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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.