Home / 11,146.68-16,720.20-3,355.56

Finding the Fourth Proportional to 11,146.68, 16,720.20 and 3,355.56

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Solution

The fourth proportional to 11,146.68, 16,720.20 and 3,355.56 is: 5,033.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.68 : 16,720.20 = 3,355.56 : x
  2. Step 2: Convert to fraction form
    11,146.68/16,720.20 = 3,355.56/x
  3. Step 3: Cross multiply
    11,146.68x = 16,720.20 × 3,355.56
  4. Step 4: Simplify right side
    11,146.68x = 56,105,634.31
  5. Step 5: Solve for x
    x = 56,105,634.31/11,146.68
  6. Step 6: Final answer
    x = 5,033.39

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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.