Home / 12,175.46-18,265.25-3,857.80

Finding the Fourth Proportional to 12,175.46, 18,265.25 and 3,857.80

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Solution

The fourth proportional to 12,175.46, 18,265.25 and 3,857.80 is: 5,787.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,175.46 : 18,265.25 = 3,857.80 : x
  2. Step 2: Convert to fraction form
    12,175.46/18,265.25 = 3,857.80/x
  3. Step 3: Cross multiply
    12,175.46x = 18,265.25 × 3,857.80
  4. Step 4: Simplify right side
    12,175.46x = 70,463,709.35
  5. Step 5: Solve for x
    x = 70,463,709.35/12,175.46
  6. Step 6: Final answer
    x = 5,787.35

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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.