Home / 13,825.39-19,081.48-8,159.73

Finding the Fourth Proportional to 13,825.39, 19,081.48 and 8,159.73

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Solution

The fourth proportional to 13,825.39, 19,081.48 and 8,159.73 is: 11,261.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.39 : 19,081.48 = 8,159.73 : x
  2. Step 2: Convert to fraction form
    13,825.39/19,081.48 = 8,159.73/x
  3. Step 3: Cross multiply
    13,825.39x = 19,081.48 × 8,159.73
  4. Step 4: Simplify right side
    13,825.39x = 155,699,724.80
  5. Step 5: Solve for x
    x = 155,699,724.80/13,825.39
  6. Step 6: Final answer
    x = 11,261.87

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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.