Home / 8,372.46-12,558.67-3,438.63

Finding the Fourth Proportional to 8,372.46, 12,558.67 and 3,438.63

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Solution

The fourth proportional to 8,372.46, 12,558.67 and 3,438.63 is: 5,157.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372.46 : 12,558.67 = 3,438.63 : x
  2. Step 2: Convert to fraction form
    8,372.46/12,558.67 = 3,438.63/x
  3. Step 3: Cross multiply
    8,372.46x = 12,558.67 × 3,438.63
  4. Step 4: Simplify right side
    8,372.46x = 43,184,619.42
  5. Step 5: Solve for x
    x = 43,184,619.42/8,372.46
  6. Step 6: Final answer
    x = 5,157.94

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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.