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Finding the Fourth Proportional to 26,938.69, 40,408.04 and 8,470.69

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Solution

The fourth proportional to 26,938.69, 40,408.04 and 8,470.69 is: 12,706.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,938.69 : 40,408.04 = 8,470.69 : x
  2. Step 2: Convert to fraction form
    26,938.69/40,408.04 = 8,470.69/x
  3. Step 3: Cross multiply
    26,938.69x = 40,408.04 × 8,470.69
  4. Step 4: Simplify right side
    26,938.69x = 342,283,836.97
  5. Step 5: Solve for x
    x = 342,283,836.97/26,938.69
  6. Step 6: Final answer
    x = 12,706.03

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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.