Home / 11,379.45-15,701.73-6,342.57

Finding the Fourth Proportional to 11,379.45, 15,701.73 and 6,342.57

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Solution

The fourth proportional to 11,379.45, 15,701.73 and 6,342.57 is: 8,751.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,379.45 : 15,701.73 = 6,342.57 : x
  2. Step 2: Convert to fraction form
    11,379.45/15,701.73 = 6,342.57/x
  3. Step 3: Cross multiply
    11,379.45x = 15,701.73 × 6,342.57
  4. Step 4: Simplify right side
    11,379.45x = 99,589,321.65
  5. Step 5: Solve for x
    x = 99,589,321.65/11,379.45
  6. Step 6: Final answer
    x = 8,751.68

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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.