Home / 6,912.86-10,361.79-3,398.76

Finding the Fourth Proportional to 6,912.86, 10,361.79 and 3,398.76

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Solution

The fourth proportional to 6,912.86, 10,361.79 and 3,398.76 is: 5,094.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.86 : 10,361.79 = 3,398.76 : x
  2. Step 2: Convert to fraction form
    6,912.86/10,361.79 = 3,398.76/x
  3. Step 3: Cross multiply
    6,912.86x = 10,361.79 × 3,398.76
  4. Step 4: Simplify right side
    6,912.86x = 35,217,237.38
  5. Step 5: Solve for x
    x = 35,217,237.38/6,912.86
  6. Step 6: Final answer
    x = 5,094.46

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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.