Home / 12,745.60-19,112.19-5,348.05

Finding the Fourth Proportional to 12,745.60, 19,112.19 and 5,348.05

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Solution

The fourth proportional to 12,745.60, 19,112.19 and 5,348.05 is: 8,019.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,745.60 : 19,112.19 = 5,348.05 : x
  2. Step 2: Convert to fraction form
    12,745.60/19,112.19 = 5,348.05/x
  3. Step 3: Cross multiply
    12,745.60x = 19,112.19 × 5,348.05
  4. Step 4: Simplify right side
    12,745.60x = 102,212,947.73
  5. Step 5: Solve for x
    x = 102,212,947.73/12,745.60
  6. Step 6: Final answer
    x = 8,019.47

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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.