Home / 11,145.70-16,720.26-3,748.42

Finding the Fourth Proportional to 11,145.70, 16,720.26 and 3,748.42

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Solution

The fourth proportional to 11,145.70, 16,720.26 and 3,748.42 is: 5,623.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.70 : 16,720.26 = 3,748.42 : x
  2. Step 2: Convert to fraction form
    11,145.70/16,720.26 = 3,748.42/x
  3. Step 3: Cross multiply
    11,145.70x = 16,720.26 × 3,748.42
  4. Step 4: Simplify right side
    11,145.70x = 62,674,556.99
  5. Step 5: Solve for x
    x = 62,674,556.99/11,145.70
  6. Step 6: Final answer
    x = 5,623.21

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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.