Home / 26,910.78-40,366.17-8,191.89

Finding the Fourth Proportional to 26,910.78, 40,366.17 and 8,191.89

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Solution

The fourth proportional to 26,910.78, 40,366.17 and 8,191.89 is: 12,287.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,910.78 : 40,366.17 = 8,191.89 : x
  2. Step 2: Convert to fraction form
    26,910.78/40,366.17 = 8,191.89/x
  3. Step 3: Cross multiply
    26,910.78x = 40,366.17 × 8,191.89
  4. Step 4: Simplify right side
    26,910.78x = 330,675,224.36
  5. Step 5: Solve for x
    x = 330,675,224.36/26,910.78
  6. Step 6: Final answer
    x = 12,287.84

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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.