Home / 13,205.91-19,809.95-5,414.79

Finding the Fourth Proportional to 13,205.91, 19,809.95 and 5,414.79

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Solution

The fourth proportional to 13,205.91, 19,809.95 and 5,414.79 is: 8,122.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.91 : 19,809.95 = 5,414.79 : x
  2. Step 2: Convert to fraction form
    13,205.91/19,809.95 = 5,414.79/x
  3. Step 3: Cross multiply
    13,205.91x = 19,809.95 × 5,414.79
  4. Step 4: Simplify right side
    13,205.91x = 107,266,692.09
  5. Step 5: Solve for x
    x = 107,266,692.09/13,205.91
  6. Step 6: Final answer
    x = 8,122.63

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1.5x scale

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.