Home / 8,162.56-12,239.36-3,777.60

Finding the Fourth Proportional to 8,162.56, 12,239.36 and 3,777.60

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Solution

The fourth proportional to 8,162.56, 12,239.36 and 3,777.60 is: 5,664.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,162.56 : 12,239.36 = 3,777.60 : x
  2. Step 2: Convert to fraction form
    8,162.56/12,239.36 = 3,777.60/x
  3. Step 3: Cross multiply
    8,162.56x = 12,239.36 × 3,777.60
  4. Step 4: Simplify right side
    8,162.56x = 46,235,406.34
  5. Step 5: Solve for x
    x = 46,235,406.34/8,162.56
  6. Step 6: Final answer
    x = 5,664.33

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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.