Home / 12,968.39-19,447.67-4,200.95

Finding the Fourth Proportional to 12,968.39, 19,447.67 and 4,200.95

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Solution

The fourth proportional to 12,968.39, 19,447.67 and 4,200.95 is: 6,299.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,968.39 : 19,447.67 = 4,200.95 : x
  2. Step 2: Convert to fraction form
    12,968.39/19,447.67 = 4,200.95/x
  3. Step 3: Cross multiply
    12,968.39x = 19,447.67 × 4,200.95
  4. Step 4: Simplify right side
    12,968.39x = 81,698,571.04
  5. Step 5: Solve for x
    x = 81,698,571.04/12,968.39
  6. Step 6: Final answer
    x = 6,299.83

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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.