Home / 7,481.10-11,233.80-5,415.60

Finding the Fourth Proportional to 7,481.10, 11,233.80 and 5,415.60

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Solution

The fourth proportional to 7,481.10, 11,233.80 and 5,415.60 is: 8,132.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.10 : 11,233.80 = 5,415.60 : x
  2. Step 2: Convert to fraction form
    7,481.10/11,233.80 = 5,415.60/x
  3. Step 3: Cross multiply
    7,481.10x = 11,233.80 × 5,415.60
  4. Step 4: Simplify right side
    7,481.10x = 60,837,767.28
  5. Step 5: Solve for x
    x = 60,837,767.28/7,481.10
  6. Step 6: Final answer
    x = 8,132.20

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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.