Home / 13,379.85-18,473.23-11,958.98

Finding the Fourth Proportional to 13,379.85, 18,473.23 and 11,958.98

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Solution

The fourth proportional to 13,379.85, 18,473.23 and 11,958.98 is: 16,511.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,379.85 : 18,473.23 = 11,958.98 : x
  2. Step 2: Convert to fraction form
    13,379.85/18,473.23 = 11,958.98/x
  3. Step 3: Cross multiply
    13,379.85x = 18,473.23 × 11,958.98
  4. Step 4: Simplify right side
    13,379.85x = 220,920,910.69
  5. Step 5: Solve for x
    x = 220,920,910.69/13,379.85
  6. Step 6: Final answer
    x = 16,511.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.