Home / 12,778.24-19,170.42-4,013.15

Finding the Fourth Proportional to 12,778.24, 19,170.42 and 4,013.15

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Solution

The fourth proportional to 12,778.24, 19,170.42 and 4,013.15 is: 6,020.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778.24 : 19,170.42 = 4,013.15 : x
  2. Step 2: Convert to fraction form
    12,778.24/19,170.42 = 4,013.15/x
  3. Step 3: Cross multiply
    12,778.24x = 19,170.42 × 4,013.15
  4. Step 4: Simplify right side
    12,778.24x = 76,933,771.02
  5. Step 5: Solve for x
    x = 76,933,771.02/12,778.24
  6. Step 6: Final answer
    x = 6,020.69

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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.