Home / 11,977.48-17,965.37-4,479.61

Finding the Fourth Proportional to 11,977.48, 17,965.37 and 4,479.61

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Solution

The fourth proportional to 11,977.48, 17,965.37 and 4,479.61 is: 6,719.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.48 : 17,965.37 = 4,479.61 : x
  2. Step 2: Convert to fraction form
    11,977.48/17,965.37 = 4,479.61/x
  3. Step 3: Cross multiply
    11,977.48x = 17,965.37 × 4,479.61
  4. Step 4: Simplify right side
    11,977.48x = 80,477,761.28
  5. Step 5: Solve for x
    x = 80,477,761.28/11,977.48
  6. Step 6: Final answer
    x = 6,719.09

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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.