Home / 8,181.50-11,290.56-4,455.50

Finding the Fourth Proportional to 8,181.50, 11,290.56 and 4,455.50

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Solution

The fourth proportional to 8,181.50, 11,290.56 and 4,455.50 is: 6,148.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.50 : 11,290.56 = 4,455.50 : x
  2. Step 2: Convert to fraction form
    8,181.50/11,290.56 = 4,455.50/x
  3. Step 3: Cross multiply
    8,181.50x = 11,290.56 × 4,455.50
  4. Step 4: Simplify right side
    8,181.50x = 50,305,090.08
  5. Step 5: Solve for x
    x = 50,305,090.08/8,181.50
  6. Step 6: Final answer
    x = 6,148.64

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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.