Home / 11,149.57-16,724.35-2,830.21

Finding the Fourth Proportional to 11,149.57, 16,724.35 and 2,830.21

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Solution

The fourth proportional to 11,149.57, 16,724.35 and 2,830.21 is: 4,245.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,149.57 : 16,724.35 = 2,830.21 : x
  2. Step 2: Convert to fraction form
    11,149.57/16,724.35 = 2,830.21/x
  3. Step 3: Cross multiply
    11,149.57x = 16,724.35 × 2,830.21
  4. Step 4: Simplify right side
    11,149.57x = 47,333,338.99
  5. Step 5: Solve for x
    x = 47,333,338.99/11,149.57
  6. Step 6: Final answer
    x = 4,245.31

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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.