Home / 13,971.44-19,278.97-8,002.75

Finding the Fourth Proportional to 13,971.44, 19,278.97 and 8,002.75

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Solution

The fourth proportional to 13,971.44, 19,278.97 and 8,002.75 is: 11,042.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.44 : 19,278.97 = 8,002.75 : x
  2. Step 2: Convert to fraction form
    13,971.44/19,278.97 = 8,002.75/x
  3. Step 3: Cross multiply
    13,971.44x = 19,278.97 × 8,002.75
  4. Step 4: Simplify right side
    13,971.44x = 154,284,835.37
  5. Step 5: Solve for x
    x = 154,284,835.37/13,971.44
  6. Step 6: Final answer
    x = 11,042.87

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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.