Home / 11,441.68-17,144.88-7,729.36

Finding the Fourth Proportional to 11,441.68, 17,144.88 and 7,729.36

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Solution

The fourth proportional to 11,441.68, 17,144.88 and 7,729.36 is: 11,582.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,441.68 : 17,144.88 = 7,729.36 : x
  2. Step 2: Convert to fraction form
    11,441.68/17,144.88 = 7,729.36/x
  3. Step 3: Cross multiply
    11,441.68x = 17,144.88 × 7,729.36
  4. Step 4: Simplify right side
    11,441.68x = 132,518,949.68
  5. Step 5: Solve for x
    x = 132,518,949.68/11,441.68
  6. Step 6: Final answer
    x = 11,582.12

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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.