Home / 8,372.09-12,558.35-3,438.27

Finding the Fourth Proportional to 8,372.09, 12,558.35 and 3,438.27

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Solution

The fourth proportional to 8,372.09, 12,558.35 and 3,438.27 is: 5,157.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372.09 : 12,558.35 = 3,438.27 : x
  2. Step 2: Convert to fraction form
    8,372.09/12,558.35 = 3,438.27/x
  3. Step 3: Cross multiply
    8,372.09x = 12,558.35 × 3,438.27
  4. Step 4: Simplify right side
    8,372.09x = 43,179,006.65
  5. Step 5: Solve for x
    x = 43,179,006.65/8,372.09
  6. Step 6: Final answer
    x = 5,157.49

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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.