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Finding the Fourth Proportional to 17,897.63, 26,836.77 and 8,539.78

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Solution

The fourth proportional to 17,897.63, 26,836.77 and 8,539.78 is: 12,805.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,897.63 : 26,836.77 = 8,539.78 : x
  2. Step 2: Convert to fraction form
    17,897.63/26,836.77 = 8,539.78/x
  3. Step 3: Cross multiply
    17,897.63x = 26,836.77 × 8,539.78
  4. Step 4: Simplify right side
    17,897.63x = 229,180,078.93
  5. Step 5: Solve for x
    x = 229,180,078.93/17,897.63
  6. Step 6: Final answer
    x = 12,805.05

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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.