Home / 12,071.35-18,107-3,306.95

Finding the Fourth Proportional to 12,071.35, 18,107 and 3,306.95

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Solution

The fourth proportional to 12,071.35, 18,107 and 3,306.95 is: 4,960.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,071.35 : 18,107 = 3,306.95 : x
  2. Step 2: Convert to fraction form
    12,071.35/18,107 = 3,306.95/x
  3. Step 3: Cross multiply
    12,071.35x = 18,107 × 3,306.95
  4. Step 4: Simplify right side
    12,071.35x = 59,878,943.65
  5. Step 5: Solve for x
    x = 59,878,943.65/12,071.35
  6. Step 6: Final answer
    x = 4,960.42

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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.