Home / 12,940.82-19,411.23-4,175.75

Finding the Fourth Proportional to 12,940.82, 19,411.23 and 4,175.75

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Solution

The fourth proportional to 12,940.82, 19,411.23 and 4,175.75 is: 6,263.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,940.82 : 19,411.23 = 4,175.75 : x
  2. Step 2: Convert to fraction form
    12,940.82/19,411.23 = 4,175.75/x
  3. Step 3: Cross multiply
    12,940.82x = 19,411.23 × 4,175.75
  4. Step 4: Simplify right side
    12,940.82x = 81,056,346.62
  5. Step 5: Solve for x
    x = 81,056,346.62/12,940.82
  6. Step 6: Final answer
    x = 6,263.62

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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.