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Finding the Fourth Proportional to 17,759.40, 26,638.05 and 6,665.16

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Solution

The fourth proportional to 17,759.40, 26,638.05 and 6,665.16 is: 9,997.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,759.40 : 26,638.05 = 6,665.16 : x
  2. Step 2: Convert to fraction form
    17,759.40/26,638.05 = 6,665.16/x
  3. Step 3: Cross multiply
    17,759.40x = 26,638.05 × 6,665.16
  4. Step 4: Simplify right side
    17,759.40x = 177,546,790.44
  5. Step 5: Solve for x
    x = 177,546,790.44/17,759.40
  6. Step 6: Final answer
    x = 9,997.34

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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.