Home / 7,427.95-11,142.08-2,745.55

Finding the Fourth Proportional to 7,427.95, 11,142.08 and 2,745.55

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Solution

The fourth proportional to 7,427.95, 11,142.08 and 2,745.55 is: 4,118.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.95 : 11,142.08 = 2,745.55 : x
  2. Step 2: Convert to fraction form
    7,427.95/11,142.08 = 2,745.55/x
  3. Step 3: Cross multiply
    7,427.95x = 11,142.08 × 2,745.55
  4. Step 4: Simplify right side
    7,427.95x = 30,591,137.74
  5. Step 5: Solve for x
    x = 30,591,137.74/7,427.95
  6. Step 6: Final answer
    x = 4,118.38

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Half scale
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Double scale
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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.