Home / 12,791.98-19,190.40-4,474.36

Finding the Fourth Proportional to 12,791.98, 19,190.40 and 4,474.36

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Solution

The fourth proportional to 12,791.98, 19,190.40 and 4,474.36 is: 6,712.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791.98 : 19,190.40 = 4,474.36 : x
  2. Step 2: Convert to fraction form
    12,791.98/19,190.40 = 4,474.36/x
  3. Step 3: Cross multiply
    12,791.98x = 19,190.40 × 4,474.36
  4. Step 4: Simplify right side
    12,791.98x = 85,864,758.14
  5. Step 5: Solve for x
    x = 85,864,758.14/12,791.98
  6. Step 6: Final answer
    x = 6,712.39

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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.