Home / 12,493.62-18,734.06-4,170.65

Finding the Fourth Proportional to 12,493.62, 18,734.06 and 4,170.65

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Solution

The fourth proportional to 12,493.62, 18,734.06 and 4,170.65 is: 6,253.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,493.62 : 18,734.06 = 4,170.65 : x
  2. Step 2: Convert to fraction form
    12,493.62/18,734.06 = 4,170.65/x
  3. Step 3: Cross multiply
    12,493.62x = 18,734.06 × 4,170.65
  4. Step 4: Simplify right side
    12,493.62x = 78,133,124.10
  5. Step 5: Solve for x
    x = 78,133,124.10/12,493.62
  6. Step 6: Final answer
    x = 6,253.84

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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.