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Finding the Fourth Proportional to 26,884.56, 40,326.84 and 8,418

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Solution

The fourth proportional to 26,884.56, 40,326.84 and 8,418 is: 12,627.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,884.56 : 40,326.84 = 8,418 : x
  2. Step 2: Convert to fraction form
    26,884.56/40,326.84 = 8,418/x
  3. Step 3: Cross multiply
    26,884.56x = 40,326.84 × 8,418
  4. Step 4: Simplify right side
    26,884.56x = 339,471,339.12
  5. Step 5: Solve for x
    x = 339,471,339.12/26,884.56
  6. Step 6: Final answer
    x = 12,627.00

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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.