Home / 11,907.20-17,860.59-4,115.81

Finding the Fourth Proportional to 11,907.20, 17,860.59 and 4,115.81

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Solution

The fourth proportional to 11,907.20, 17,860.59 and 4,115.81 is: 6,173.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,907.20 : 17,860.59 = 4,115.81 : x
  2. Step 2: Convert to fraction form
    11,907.20/17,860.59 = 4,115.81/x
  3. Step 3: Cross multiply
    11,907.20x = 17,860.59 × 4,115.81
  4. Step 4: Simplify right side
    11,907.20x = 73,510,705.62
  5. Step 5: Solve for x
    x = 73,510,705.62/11,907.20
  6. Step 6: Final answer
    x = 6,173.64

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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.