Home / 12,554.82-18,835.11-3,789.81

Finding the Fourth Proportional to 12,554.82, 18,835.11 and 3,789.81

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Solution

The fourth proportional to 12,554.82, 18,835.11 and 3,789.81 is: 5,685.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,554.82 : 18,835.11 = 3,789.81 : x
  2. Step 2: Convert to fraction form
    12,554.82/18,835.11 = 3,789.81/x
  3. Step 3: Cross multiply
    12,554.82x = 18,835.11 × 3,789.81
  4. Step 4: Simplify right side
    12,554.82x = 71,381,488.23
  5. Step 5: Solve for x
    x = 71,381,488.23/12,554.82
  6. Step 6: Final answer
    x = 5,685.58

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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.