Home / 11,320.94-16,975.95-4,745.36

Finding the Fourth Proportional to 11,320.94, 16,975.95 and 4,745.36

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Solution

The fourth proportional to 11,320.94, 16,975.95 and 4,745.36 is: 7,115.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.94 : 16,975.95 = 4,745.36 : x
  2. Step 2: Convert to fraction form
    11,320.94/16,975.95 = 4,745.36/x
  3. Step 3: Cross multiply
    11,320.94x = 16,975.95 × 4,745.36
  4. Step 4: Simplify right side
    11,320.94x = 80,556,955.08
  5. Step 5: Solve for x
    x = 80,556,955.08/11,320.94
  6. Step 6: Final answer
    x = 7,115.75

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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.