Home / 12,089.73-18,126.09-4,687.95

Finding the Fourth Proportional to 12,089.73, 18,126.09 and 4,687.95

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Solution

The fourth proportional to 12,089.73, 18,126.09 and 4,687.95 is: 7,028.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.73 : 18,126.09 = 4,687.95 : x
  2. Step 2: Convert to fraction form
    12,089.73/18,126.09 = 4,687.95/x
  3. Step 3: Cross multiply
    12,089.73x = 18,126.09 × 4,687.95
  4. Step 4: Simplify right side
    12,089.73x = 84,974,203.62
  5. Step 5: Solve for x
    x = 84,974,203.62/12,089.73
  6. Step 6: Final answer
    x = 7,028.63

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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.