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Finding the Fourth Proportional to 18,185.21, 27,296.19 and 12,926.16

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Solution

The fourth proportional to 18,185.21, 27,296.19 and 12,926.16 is: 19,402.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,185.21 : 27,296.19 = 12,926.16 : x
  2. Step 2: Convert to fraction form
    18,185.21/27,296.19 = 12,926.16/x
  3. Step 3: Cross multiply
    18,185.21x = 27,296.19 × 12,926.16
  4. Step 4: Simplify right side
    18,185.21x = 352,834,842.56
  5. Step 5: Solve for x
    x = 352,834,842.56/18,185.21
  6. Step 6: Final answer
    x = 19,402.30

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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.