Home / 12,144.43-16,835.74-11,479.22

Finding the Fourth Proportional to 12,144.43, 16,835.74 and 11,479.22

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Solution

The fourth proportional to 12,144.43, 16,835.74 and 11,479.22 is: 15,913.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.43 : 16,835.74 = 11,479.22 : x
  2. Step 2: Convert to fraction form
    12,144.43/16,835.74 = 11,479.22/x
  3. Step 3: Cross multiply
    12,144.43x = 16,835.74 × 11,479.22
  4. Step 4: Simplify right side
    12,144.43x = 193,261,021.75
  5. Step 5: Solve for x
    x = 193,261,021.75/12,144.43
  6. Step 6: Final answer
    x = 15,913.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.