Home / 12,788.25-19,182.39-3,554.25

Finding the Fourth Proportional to 12,788.25, 19,182.39 and 3,554.25

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Solution

The fourth proportional to 12,788.25, 19,182.39 and 3,554.25 is: 5,331.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.25 : 19,182.39 = 3,554.25 : x
  2. Step 2: Convert to fraction form
    12,788.25/19,182.39 = 3,554.25/x
  3. Step 3: Cross multiply
    12,788.25x = 19,182.39 × 3,554.25
  4. Step 4: Simplify right side
    12,788.25x = 68,179,009.66
  5. Step 5: Solve for x
    x = 68,179,009.66/12,788.25
  6. Step 6: Final answer
    x = 5,331.38

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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.