Home / 11,138.64-15,373.17-8,481.03

Finding the Fourth Proportional to 11,138.64, 15,373.17 and 8,481.03

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Solution

The fourth proportional to 11,138.64, 15,373.17 and 8,481.03 is: 11,705.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.64 : 15,373.17 = 8,481.03 : x
  2. Step 2: Convert to fraction form
    11,138.64/15,373.17 = 8,481.03/x
  3. Step 3: Cross multiply
    11,138.64x = 15,373.17 × 8,481.03
  4. Step 4: Simplify right side
    11,138.64x = 130,380,315.97
  5. Step 5: Solve for x
    x = 130,380,315.97/11,138.64
  6. Step 6: Final answer
    x = 11,705.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.