Home / 12,860.73-19,290.56-3,975.71

Finding the Fourth Proportional to 12,860.73, 19,290.56 and 3,975.71

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Solution

The fourth proportional to 12,860.73, 19,290.56 and 3,975.71 is: 5,963.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.73 : 19,290.56 = 3,975.71 : x
  2. Step 2: Convert to fraction form
    12,860.73/19,290.56 = 3,975.71/x
  3. Step 3: Cross multiply
    12,860.73x = 19,290.56 × 3,975.71
  4. Step 4: Simplify right side
    12,860.73x = 76,693,555.97
  5. Step 5: Solve for x
    x = 76,693,555.97/12,860.73
  6. Step 6: Final answer
    x = 5,963.39

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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.