Home / 19,791.79-27,314.73-11,730.25

Finding the Fourth Proportional to 19,791.79, 27,314.73 and 11,730.25

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Solution

The fourth proportional to 19,791.79, 27,314.73 and 11,730.25 is: 16,188.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,791.79 : 27,314.73 = 11,730.25 : x
  2. Step 2: Convert to fraction form
    19,791.79/27,314.73 = 11,730.25/x
  3. Step 3: Cross multiply
    19,791.79x = 27,314.73 × 11,730.25
  4. Step 4: Simplify right side
    19,791.79x = 320,408,611.58
  5. Step 5: Solve for x
    x = 320,408,611.58/19,791.79
  6. Step 6: Final answer
    x = 16,188.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.