Home / 11,356.85-17,029.20-4,775.60

Finding the Fourth Proportional to 11,356.85, 17,029.20 and 4,775.60

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Solution

The fourth proportional to 11,356.85, 17,029.20 and 4,775.60 is: 7,160.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356.85 : 17,029.20 = 4,775.60 : x
  2. Step 2: Convert to fraction form
    11,356.85/17,029.20 = 4,775.60/x
  3. Step 3: Cross multiply
    11,356.85x = 17,029.20 × 4,775.60
  4. Step 4: Simplify right side
    11,356.85x = 81,324,647.52
  5. Step 5: Solve for x
    x = 81,324,647.52/11,356.85
  6. Step 6: Final answer
    x = 7,160.85

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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.