Home / 8,439.21-11,629.67-6,076.89

Finding the Fourth Proportional to 8,439.21, 11,629.67 and 6,076.89

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Solution

The fourth proportional to 8,439.21, 11,629.67 and 6,076.89 is: 8,374.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.21 : 11,629.67 = 6,076.89 : x
  2. Step 2: Convert to fraction form
    8,439.21/11,629.67 = 6,076.89/x
  3. Step 3: Cross multiply
    8,439.21x = 11,629.67 × 6,076.89
  4. Step 4: Simplify right side
    8,439.21x = 70,672,194.94
  5. Step 5: Solve for x
    x = 70,672,194.94/8,439.21
  6. Step 6: Final answer
    x = 8,374.27

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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.