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Finding the Fourth Proportional to 12,677.25, 19,015.92 and 3,443.25

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Solution

The fourth proportional to 12,677.25, 19,015.92 and 3,443.25 is: 5,164.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,677.25 : 19,015.92 = 3,443.25 : x
  2. Step 2: Convert to fraction form
    12,677.25/19,015.92 = 3,443.25/x
  3. Step 3: Cross multiply
    12,677.25x = 19,015.92 × 3,443.25
  4. Step 4: Simplify right side
    12,677.25x = 65,476,566.54
  5. Step 5: Solve for x
    x = 65,476,566.54/12,677.25
  6. Step 6: Final answer
    x = 5,164.89

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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.