Home / 13,175.80-19,745.70-8,481.40

Finding the Fourth Proportional to 13,175.80, 19,745.70 and 8,481.40

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Solution

The fourth proportional to 13,175.80, 19,745.70 and 8,481.40 is: 12,710.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,175.80 : 19,745.70 = 8,481.40 : x
  2. Step 2: Convert to fraction form
    13,175.80/19,745.70 = 8,481.40/x
  3. Step 3: Cross multiply
    13,175.80x = 19,745.70 × 8,481.40
  4. Step 4: Simplify right side
    13,175.80x = 167,471,179.98
  5. Step 5: Solve for x
    x = 167,471,179.98/13,175.80
  6. Step 6: Final answer
    x = 12,710.51

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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.