Home / 11,212.75-16,820.52-3,816.64

Finding the Fourth Proportional to 11,212.75, 16,820.52 and 3,816.64

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Solution

The fourth proportional to 11,212.75, 16,820.52 and 3,816.64 is: 5,725.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,212.75 : 16,820.52 = 3,816.64 : x
  2. Step 2: Convert to fraction form
    11,212.75/16,820.52 = 3,816.64/x
  3. Step 3: Cross multiply
    11,212.75x = 16,820.52 × 3,816.64
  4. Step 4: Simplify right side
    11,212.75x = 64,197,869.45
  5. Step 5: Solve for x
    x = 64,197,869.45/11,212.75
  6. Step 6: Final answer
    x = 5,725.43

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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.