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Finding the Fourth Proportional to 17,817.21, 26,735.03 and 12,927.21

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Solution

The fourth proportional to 17,817.21, 26,735.03 and 12,927.21 is: 19,397.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,817.21 : 26,735.03 = 12,927.21 : x
  2. Step 2: Convert to fraction form
    17,817.21/26,735.03 = 12,927.21/x
  3. Step 3: Cross multiply
    17,817.21x = 26,735.03 × 12,927.21
  4. Step 4: Simplify right side
    17,817.21x = 345,609,347.17
  5. Step 5: Solve for x
    x = 345,609,347.17/17,817.21
  6. Step 6: Final answer
    x = 19,397.50

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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.