Home / 12,883.22-19,323.89-4,115.78

Finding the Fourth Proportional to 12,883.22, 19,323.89 and 4,115.78

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Solution

The fourth proportional to 12,883.22, 19,323.89 and 4,115.78 is: 6,173.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883.22 : 19,323.89 = 4,115.78 : x
  2. Step 2: Convert to fraction form
    12,883.22/19,323.89 = 4,115.78/x
  3. Step 3: Cross multiply
    12,883.22x = 19,323.89 × 4,115.78
  4. Step 4: Simplify right side
    12,883.22x = 79,532,859.41
  5. Step 5: Solve for x
    x = 79,532,859.41/12,883.22
  6. Step 6: Final answer
    x = 6,173.37

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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.