Home / 8,372.32-12,556.48-3,440.64

Finding the Fourth Proportional to 8,372.32, 12,556.48 and 3,440.64

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Solution

The fourth proportional to 8,372.32, 12,556.48 and 3,440.64 is: 5,160.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372.32 : 12,556.48 = 3,440.64 : x
  2. Step 2: Convert to fraction form
    8,372.32/12,556.48 = 3,440.64/x
  3. Step 3: Cross multiply
    8,372.32x = 12,556.48 × 3,440.64
  4. Step 4: Simplify right side
    8,372.32x = 43,202,327.35
  5. Step 5: Solve for x
    x = 43,202,327.35/8,372.32
  6. Step 6: Final answer
    x = 5,160.14

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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.