Home / 11,212.40-16,820.64-3,816.48

Finding the Fourth Proportional to 11,212.40, 16,820.64 and 3,816.48

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Solution

The fourth proportional to 11,212.40, 16,820.64 and 3,816.48 is: 5,725.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,212.40 : 16,820.64 = 3,816.48 : x
  2. Step 2: Convert to fraction form
    11,212.40/16,820.64 = 3,816.48/x
  3. Step 3: Cross multiply
    11,212.40x = 16,820.64 × 3,816.48
  4. Step 4: Simplify right side
    11,212.40x = 64,195,636.15
  5. Step 5: Solve for x
    x = 64,195,636.15/11,212.40
  6. Step 6: Final answer
    x = 5,725.41

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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.