Home / 13,971.31-19,279.24-8,227.85

Finding the Fourth Proportional to 13,971.31, 19,279.24 and 8,227.85

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Solution

The fourth proportional to 13,971.31, 19,279.24 and 8,227.85 is: 11,353.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.31 : 19,279.24 = 8,227.85 : x
  2. Step 2: Convert to fraction form
    13,971.31/19,279.24 = 8,227.85/x
  3. Step 3: Cross multiply
    13,971.31x = 19,279.24 × 8,227.85
  4. Step 4: Simplify right side
    13,971.31x = 158,626,694.83
  5. Step 5: Solve for x
    x = 158,626,694.83/13,971.31
  6. Step 6: Final answer
    x = 11,353.75

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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.