Home / 11,118.22-15,255.50-11,013.73

Finding the Fourth Proportional to 11,118.22, 15,255.50 and 11,013.73

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Solution

The fourth proportional to 11,118.22, 15,255.50 and 11,013.73 is: 15,112.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.22 : 15,255.50 = 11,013.73 : x
  2. Step 2: Convert to fraction form
    11,118.22/15,255.50 = 11,013.73/x
  3. Step 3: Cross multiply
    11,118.22x = 15,255.50 × 11,013.73
  4. Step 4: Simplify right side
    11,118.22x = 168,019,958.02
  5. Step 5: Solve for x
    x = 168,019,958.02/11,118.22
  6. Step 6: Final answer
    x = 15,112.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.