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Finding the Fourth Proportional to 26,926.92, 40,396.78 and 8,458.92

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Solution

The fourth proportional to 26,926.92, 40,396.78 and 8,458.92 is: 12,690.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,926.92 : 40,396.78 = 8,458.92 : x
  2. Step 2: Convert to fraction form
    26,926.92/40,396.78 = 8,458.92/x
  3. Step 3: Cross multiply
    26,926.92x = 40,396.78 × 8,458.92
  4. Step 4: Simplify right side
    26,926.92x = 341,713,130.28
  5. Step 5: Solve for x
    x = 341,713,130.28/26,926.92
  6. Step 6: Final answer
    x = 12,690.39

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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.