Home / 8,128.46-12,193.52-2,933.12

Finding the Fourth Proportional to 8,128.46, 12,193.52 and 2,933.12

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Solution

The fourth proportional to 8,128.46, 12,193.52 and 2,933.12 is: 4,399.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.46 : 12,193.52 = 2,933.12 : x
  2. Step 2: Convert to fraction form
    8,128.46/12,193.52 = 2,933.12/x
  3. Step 3: Cross multiply
    8,128.46x = 12,193.52 × 2,933.12
  4. Step 4: Simplify right side
    8,128.46x = 35,765,073.20
  5. Step 5: Solve for x
    x = 35,765,073.20/8,128.46
  6. Step 6: Final answer
    x = 4,399.98

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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.