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Finding the Fourth Proportional to 17,819.94, 26,712.30 and 8,443.47

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Solution

The fourth proportional to 17,819.94, 26,712.30 and 8,443.47 is: 12,656.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,819.94 : 26,712.30 = 8,443.47 : x
  2. Step 2: Convert to fraction form
    17,819.94/26,712.30 = 8,443.47/x
  3. Step 3: Cross multiply
    17,819.94x = 26,712.30 × 8,443.47
  4. Step 4: Simplify right side
    17,819.94x = 225,544,503.68
  5. Step 5: Solve for x
    x = 225,544,503.68/17,819.94
  6. Step 6: Final answer
    x = 12,656.86

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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.