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Finding the Fourth Proportional to 17,955.22, 26,920.34 and 7,954.54

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Solution

The fourth proportional to 17,955.22, 26,920.34 and 7,954.54 is: 11,926.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,955.22 : 26,920.34 = 7,954.54 : x
  2. Step 2: Convert to fraction form
    17,955.22/26,920.34 = 7,954.54/x
  3. Step 3: Cross multiply
    17,955.22x = 26,920.34 × 7,954.54
  4. Step 4: Simplify right side
    17,955.22x = 214,138,921.34
  5. Step 5: Solve for x
    x = 214,138,921.34/17,955.22
  6. Step 6: Final answer
    x = 11,926.28

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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.