Home / 12,205.01-18,306.74-3,890.99

Finding the Fourth Proportional to 12,205.01, 18,306.74 and 3,890.99

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Solution

The fourth proportional to 12,205.01, 18,306.74 and 3,890.99 is: 5,836.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,205.01 : 18,306.74 = 3,890.99 : x
  2. Step 2: Convert to fraction form
    12,205.01/18,306.74 = 3,890.99/x
  3. Step 3: Cross multiply
    12,205.01x = 18,306.74 × 3,890.99
  4. Step 4: Simplify right side
    12,205.01x = 71,231,397.77
  5. Step 5: Solve for x
    x = 71,231,397.77/12,205.01
  6. Step 6: Final answer
    x = 5,836.24

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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.