Home / 9,919.75-14,879.35-3,679.04

Finding the Fourth Proportional to 9,919.75, 14,879.35 and 3,679.04

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Solution

The fourth proportional to 9,919.75, 14,879.35 and 3,679.04 is: 5,518.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.75 : 14,879.35 = 3,679.04 : x
  2. Step 2: Convert to fraction form
    9,919.75/14,879.35 = 3,679.04/x
  3. Step 3: Cross multiply
    9,919.75x = 14,879.35 × 3,679.04
  4. Step 4: Simplify right side
    9,919.75x = 54,741,640.23
  5. Step 5: Solve for x
    x = 54,741,640.23/9,919.75
  6. Step 6: Final answer
    x = 5,518.45

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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.