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Finding the Fourth Proportional to 17,894.80, 26,850.30 and 8,531.20

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Solution

The fourth proportional to 17,894.80, 26,850.30 and 8,531.20 is: 12,800.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,894.80 : 26,850.30 = 8,531.20 : x
  2. Step 2: Convert to fraction form
    17,894.80/26,850.30 = 8,531.20/x
  3. Step 3: Cross multiply
    17,894.80x = 26,850.30 × 8,531.20
  4. Step 4: Simplify right side
    17,894.80x = 229,065,279.36
  5. Step 5: Solve for x
    x = 229,065,279.36/17,894.80
  6. Step 6: Final answer
    x = 12,800.66

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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.