Home / 12,013.81-18,012.94-4,998.65

Finding the Fourth Proportional to 12,013.81, 18,012.94 and 4,998.65

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Solution

The fourth proportional to 12,013.81, 18,012.94 and 4,998.65 is: 7,494.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.81 : 18,012.94 = 4,998.65 : x
  2. Step 2: Convert to fraction form
    12,013.81/18,012.94 = 4,998.65/x
  3. Step 3: Cross multiply
    12,013.81x = 18,012.94 × 4,998.65
  4. Step 4: Simplify right side
    12,013.81x = 90,040,279.97
  5. Step 5: Solve for x
    x = 90,040,279.97/12,013.81
  6. Step 6: Final answer
    x = 7,494.73

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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.