Home / 12,999.88-19,501.74-4,231.96

Finding the Fourth Proportional to 12,999.88, 19,501.74 and 4,231.96

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Solution

The fourth proportional to 12,999.88, 19,501.74 and 4,231.96 is: 6,348.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999.88 : 19,501.74 = 4,231.96 : x
  2. Step 2: Convert to fraction form
    12,999.88/19,501.74 = 4,231.96/x
  3. Step 3: Cross multiply
    12,999.88x = 19,501.74 × 4,231.96
  4. Step 4: Simplify right side
    12,999.88x = 82,530,583.61
  5. Step 5: Solve for x
    x = 82,530,583.61/12,999.88
  6. Step 6: Final answer
    x = 6,348.57

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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.