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Finding the Fourth Proportional to 26,627, 39,939.42 and 7,906.28

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Solution

The fourth proportional to 26,627, 39,939.42 and 7,906.28 is: 11,859.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,627 : 39,939.42 = 7,906.28 : x
  2. Step 2: Convert to fraction form
    26,627/39,939.42 = 7,906.28/x
  3. Step 3: Cross multiply
    26,627x = 39,939.42 × 7,906.28
  4. Step 4: Simplify right side
    26,627x = 315,772,237.56
  5. Step 5: Solve for x
    x = 315,772,237.56/26,627
  6. Step 6: Final answer
    x = 11,859.10

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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.