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Finding the Fourth Proportional to 18,799, 28,193.88 and 8,271.66

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Solution

The fourth proportional to 18,799, 28,193.88 and 8,271.66 is: 12,405.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,799 : 28,193.88 = 8,271.66 : x
  2. Step 2: Convert to fraction form
    18,799/28,193.88 = 8,271.66/x
  3. Step 3: Cross multiply
    18,799x = 28,193.88 × 8,271.66
  4. Step 4: Simplify right side
    18,799x = 233,210,189.44
  5. Step 5: Solve for x
    x = 233,210,189.44/18,799
  6. Step 6: Final answer
    x = 12,405.46

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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.