Home / 12,778.94-19,169.22-4,014.20

Finding the Fourth Proportional to 12,778.94, 19,169.22 and 4,014.20

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Solution

The fourth proportional to 12,778.94, 19,169.22 and 4,014.20 is: 6,021.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778.94 : 19,169.22 = 4,014.20 : x
  2. Step 2: Convert to fraction form
    12,778.94/19,169.22 = 4,014.20/x
  3. Step 3: Cross multiply
    12,778.94x = 19,169.22 × 4,014.20
  4. Step 4: Simplify right side
    12,778.94x = 76,948,987.08
  5. Step 5: Solve for x
    x = 76,948,987.08/12,778.94
  6. Step 6: Final answer
    x = 6,021.55

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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.