Home / 7,912.22-11,875.53-4,217.60

Finding the Fourth Proportional to 7,912.22, 11,875.53 and 4,217.60

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Solution

The fourth proportional to 7,912.22, 11,875.53 and 4,217.60 is: 6,330.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.22 : 11,875.53 = 4,217.60 : x
  2. Step 2: Convert to fraction form
    7,912.22/11,875.53 = 4,217.60/x
  3. Step 3: Cross multiply
    7,912.22x = 11,875.53 × 4,217.60
  4. Step 4: Simplify right side
    7,912.22x = 50,086,235.33
  5. Step 5: Solve for x
    x = 50,086,235.33/7,912.22
  6. Step 6: Final answer
    x = 6,330.24

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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.