Home / 11,877.58-17,816.37-3,112.48

Finding the Fourth Proportional to 11,877.58, 17,816.37 and 3,112.48

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Solution

The fourth proportional to 11,877.58, 17,816.37 and 3,112.48 is: 4,668.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,877.58 : 17,816.37 = 3,112.48 : x
  2. Step 2: Convert to fraction form
    11,877.58/17,816.37 = 3,112.48/x
  3. Step 3: Cross multiply
    11,877.58x = 17,816.37 × 3,112.48
  4. Step 4: Simplify right side
    11,877.58x = 55,453,095.30
  5. Step 5: Solve for x
    x = 55,453,095.30/11,877.58
  6. Step 6: Final answer
    x = 4,668.72

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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.