Home / 11,021.78-16,529.58-3,123.65

Finding the Fourth Proportional to 11,021.78, 16,529.58 and 3,123.65

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Solution

The fourth proportional to 11,021.78, 16,529.58 and 3,123.65 is: 4,684.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.78 : 16,529.58 = 3,123.65 : x
  2. Step 2: Convert to fraction form
    11,021.78/16,529.58 = 3,123.65/x
  3. Step 3: Cross multiply
    11,021.78x = 16,529.58 × 3,123.65
  4. Step 4: Simplify right side
    11,021.78x = 51,632,539.92
  5. Step 5: Solve for x
    x = 51,632,539.92/11,021.78
  6. Step 6: Final answer
    x = 4,684.59

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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.