Home / 14,163.75-21,245.63-6,745.72

Finding the Fourth Proportional to 14,163.75, 21,245.63 and 6,745.72

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Solution

The fourth proportional to 14,163.75, 21,245.63 and 6,745.72 is: 10,118.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,163.75 : 21,245.63 = 6,745.72 : x
  2. Step 2: Convert to fraction form
    14,163.75/21,245.63 = 6,745.72/x
  3. Step 3: Cross multiply
    14,163.75x = 21,245.63 × 6,745.72
  4. Step 4: Simplify right side
    14,163.75x = 143,317,071.20
  5. Step 5: Solve for x
    x = 143,317,071.20/14,163.75
  6. Step 6: Final answer
    x = 10,118.58

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Double scale
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Similar ratio
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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.