Home / 11,213.48-16,815.90-3,313.80

Finding the Fourth Proportional to 11,213.48, 16,815.90 and 3,313.80

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Solution

The fourth proportional to 11,213.48, 16,815.90 and 3,313.80 is: 4,969.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.48 : 16,815.90 = 3,313.80 : x
  2. Step 2: Convert to fraction form
    11,213.48/16,815.90 = 3,313.80/x
  3. Step 3: Cross multiply
    11,213.48x = 16,815.90 × 3,313.80
  4. Step 4: Simplify right side
    11,213.48x = 55,724,529.42
  5. Step 5: Solve for x
    x = 55,724,529.42/11,213.48
  6. Step 6: Final answer
    x = 4,969.42

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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.