Home / 12,212.06-18,305.78-4,813.65

Finding the Fourth Proportional to 12,212.06, 18,305.78 and 4,813.65

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Solution

The fourth proportional to 12,212.06, 18,305.78 and 4,813.65 is: 7,215.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212.06 : 18,305.78 = 4,813.65 : x
  2. Step 2: Convert to fraction form
    12,212.06/18,305.78 = 4,813.65/x
  3. Step 3: Cross multiply
    12,212.06x = 18,305.78 × 4,813.65
  4. Step 4: Simplify right side
    12,212.06x = 88,117,593.83
  5. Step 5: Solve for x
    x = 88,117,593.83/12,212.06
  6. Step 6: Final answer
    x = 7,215.62

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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.