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Finding the Fourth Proportional to 18,116.26, 27,154.44 and 13,659.63

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Solution

The fourth proportional to 18,116.26, 27,154.44 and 13,659.63 is: 20,474.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,116.26 : 27,154.44 = 13,659.63 : x
  2. Step 2: Convert to fraction form
    18,116.26/27,154.44 = 13,659.63/x
  3. Step 3: Cross multiply
    18,116.26x = 27,154.44 × 13,659.63
  4. Step 4: Simplify right side
    18,116.26x = 370,919,603.26
  5. Step 5: Solve for x
    x = 370,919,603.26/18,116.26
  6. Step 6: Final answer
    x = 20,474.41

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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.