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Finding the Fourth Proportional to 26,469.32, 39,709.44 and 8,938.89

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Solution

The fourth proportional to 26,469.32, 39,709.44 and 8,938.89 is: 13,410.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,469.32 : 39,709.44 = 8,938.89 : x
  2. Step 2: Convert to fraction form
    26,469.32/39,709.44 = 8,938.89/x
  3. Step 3: Cross multiply
    26,469.32x = 39,709.44 × 8,938.89
  4. Step 4: Simplify right side
    26,469.32x = 354,958,316.12
  5. Step 5: Solve for x
    x = 354,958,316.12/26,469.32
  6. Step 6: Final answer
    x = 13,410.18

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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.