Home / 10,140.75-15,211.05-2,745.98

Finding the Fourth Proportional to 10,140.75, 15,211.05 and 2,745.98

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Solution

The fourth proportional to 10,140.75, 15,211.05 and 2,745.98 is: 4,118.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.75 : 15,211.05 = 2,745.98 : x
  2. Step 2: Convert to fraction form
    10,140.75/15,211.05 = 2,745.98/x
  3. Step 3: Cross multiply
    10,140.75x = 15,211.05 × 2,745.98
  4. Step 4: Simplify right side
    10,140.75x = 41,769,163.02
  5. Step 5: Solve for x
    x = 41,769,163.02/10,140.75
  6. Step 6: Final answer
    x = 4,118.94

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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.