Home / 11,081.22-16,621.65-5,242.02

Finding the Fourth Proportional to 11,081.22, 16,621.65 and 5,242.02

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Solution

The fourth proportional to 11,081.22, 16,621.65 and 5,242.02 is: 7,862.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,081.22 : 16,621.65 = 5,242.02 : x
  2. Step 2: Convert to fraction form
    11,081.22/16,621.65 = 5,242.02/x
  3. Step 3: Cross multiply
    11,081.22x = 16,621.65 × 5,242.02
  4. Step 4: Simplify right side
    11,081.22x = 87,131,021.73
  5. Step 5: Solve for x
    x = 87,131,021.73/11,081.22
  6. Step 6: Final answer
    x = 7,862.94

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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.