Home / 8,231.22-11,357.55-4,871.34

Finding the Fourth Proportional to 8,231.22, 11,357.55 and 4,871.34

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Solution

The fourth proportional to 8,231.22, 11,357.55 and 4,871.34 is: 6,721.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.22 : 11,357.55 = 4,871.34 : x
  2. Step 2: Convert to fraction form
    8,231.22/11,357.55 = 4,871.34/x
  3. Step 3: Cross multiply
    8,231.22x = 11,357.55 × 4,871.34
  4. Step 4: Simplify right side
    8,231.22x = 55,326,487.62
  5. Step 5: Solve for x
    x = 55,326,487.62/8,231.22
  6. Step 6: Final answer
    x = 6,721.54

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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.