Home / 6,278.37-9,419.28-5,105.46

Finding the Fourth Proportional to 6,278.37, 9,419.28 and 5,105.46

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Solution

The fourth proportional to 6,278.37, 9,419.28 and 5,105.46 is: 7,659.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.37 : 9,419.28 = 5,105.46 : x
  2. Step 2: Convert to fraction form
    6,278.37/9,419.28 = 5,105.46/x
  3. Step 3: Cross multiply
    6,278.37x = 9,419.28 × 5,105.46
  4. Step 4: Simplify right side
    6,278.37x = 48,089,757.27
  5. Step 5: Solve for x
    x = 48,089,757.27/6,278.37
  6. Step 6: Final answer
    x = 7,659.59

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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.