Home / 11,433.21-17,127.62-8,425.78

Finding the Fourth Proportional to 11,433.21, 17,127.62 and 8,425.78

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Solution

The fourth proportional to 11,433.21, 17,127.62 and 8,425.78 is: 12,622.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,433.21 : 17,127.62 = 8,425.78 : x
  2. Step 2: Convert to fraction form
    11,433.21/17,127.62 = 8,425.78/x
  3. Step 3: Cross multiply
    11,433.21x = 17,127.62 × 8,425.78
  4. Step 4: Simplify right side
    11,433.21x = 144,313,589.14
  5. Step 5: Solve for x
    x = 144,313,589.14/11,433.21
  6. Step 6: Final answer
    x = 12,622.32

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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.