Home / 12,725.40-19,088.64-3,960.48

Finding the Fourth Proportional to 12,725.40, 19,088.64 and 3,960.48

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Solution

The fourth proportional to 12,725.40, 19,088.64 and 3,960.48 is: 5,940.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,725.40 : 19,088.64 = 3,960.48 : x
  2. Step 2: Convert to fraction form
    12,725.40/19,088.64 = 3,960.48/x
  3. Step 3: Cross multiply
    12,725.40x = 19,088.64 × 3,960.48
  4. Step 4: Simplify right side
    12,725.40x = 75,600,176.95
  5. Step 5: Solve for x
    x = 75,600,176.95/12,725.40
  6. Step 6: Final answer
    x = 5,940.89

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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.