Home / 12,725.69-19,088.54-3,960.61

Finding the Fourth Proportional to 12,725.69, 19,088.54 and 3,960.61

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Solution

The fourth proportional to 12,725.69, 19,088.54 and 3,960.61 is: 5,940.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,725.69 : 19,088.54 = 3,960.61 : x
  2. Step 2: Convert to fraction form
    12,725.69/19,088.54 = 3,960.61/x
  3. Step 3: Cross multiply
    12,725.69x = 19,088.54 × 3,960.61
  4. Step 4: Simplify right side
    12,725.69x = 75,602,194.89
  5. Step 5: Solve for x
    x = 75,602,194.89/12,725.69
  6. Step 6: Final answer
    x = 5,940.91

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Similar ratio
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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.