Home / 12,879.41-19,319.99-4,114.98

Finding the Fourth Proportional to 12,879.41, 19,319.99 and 4,114.98

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Solution

The fourth proportional to 12,879.41, 19,319.99 and 4,114.98 is: 6,172.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879.41 : 19,319.99 = 4,114.98 : x
  2. Step 2: Convert to fraction form
    12,879.41/19,319.99 = 4,114.98/x
  3. Step 3: Cross multiply
    12,879.41x = 19,319.99 × 4,114.98
  4. Step 4: Simplify right side
    12,879.41x = 79,501,351.88
  5. Step 5: Solve for x
    x = 79,501,351.88/12,879.41
  6. Step 6: Final answer
    x = 6,172.75

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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.