Home / 12,943.54-19,390.69-6,694.19

Finding the Fourth Proportional to 12,943.54, 19,390.69 and 6,694.19

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Solution

The fourth proportional to 12,943.54, 19,390.69 and 6,694.19 is: 10,028.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,943.54 : 19,390.69 = 6,694.19 : x
  2. Step 2: Convert to fraction form
    12,943.54/19,390.69 = 6,694.19/x
  3. Step 3: Cross multiply
    12,943.54x = 19,390.69 × 6,694.19
  4. Step 4: Simplify right side
    12,943.54x = 129,804,963.09
  5. Step 5: Solve for x
    x = 129,804,963.09/12,943.54
  6. Step 6: Final answer
    x = 10,028.55

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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.