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Finding the Fourth Proportional to 16,819.47, 25,233.64 and 8,388.45

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Solution

The fourth proportional to 16,819.47, 25,233.64 and 8,388.45 is: 12,584.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,819.47 : 25,233.64 = 8,388.45 : x
  2. Step 2: Convert to fraction form
    16,819.47/25,233.64 = 8,388.45/x
  3. Step 3: Cross multiply
    16,819.47x = 25,233.64 × 8,388.45
  4. Step 4: Simplify right side
    16,819.47x = 211,671,106.49
  5. Step 5: Solve for x
    x = 211,671,106.49/16,819.47
  6. Step 6: Final answer
    x = 12,584.89

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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.