Home / 11,078.49-16,620.87-4,509.39

Finding the Fourth Proportional to 11,078.49, 16,620.87 and 4,509.39

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Solution

The fourth proportional to 11,078.49, 16,620.87 and 4,509.39 is: 6,765.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.49 : 16,620.87 = 4,509.39 : x
  2. Step 2: Convert to fraction form
    11,078.49/16,620.87 = 4,509.39/x
  3. Step 3: Cross multiply
    11,078.49x = 16,620.87 × 4,509.39
  4. Step 4: Simplify right side
    11,078.49x = 74,949,943.42
  5. Step 5: Solve for x
    x = 74,949,943.42/11,078.49
  6. Step 6: Final answer
    x = 6,765.36

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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.