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Finding the Fourth Proportional to 17,938.89, 26,908.38 and 5,626.89

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Solution

The fourth proportional to 17,938.89, 26,908.38 and 5,626.89 is: 8,440.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,938.89 : 26,908.38 = 5,626.89 : x
  2. Step 2: Convert to fraction form
    17,938.89/26,908.38 = 5,626.89/x
  3. Step 3: Cross multiply
    17,938.89x = 26,908.38 × 5,626.89
  4. Step 4: Simplify right side
    17,938.89x = 151,410,494.34
  5. Step 5: Solve for x
    x = 151,410,494.34/17,938.89
  6. Step 6: Final answer
    x = 8,440.35

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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.