Home / 11,379.35-15,703.99-6,343.57

Finding the Fourth Proportional to 11,379.35, 15,703.99 and 6,343.57

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Solution

The fourth proportional to 11,379.35, 15,703.99 and 6,343.57 is: 8,754.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,379.35 : 15,703.99 = 6,343.57 : x
  2. Step 2: Convert to fraction form
    11,379.35/15,703.99 = 6,343.57/x
  3. Step 3: Cross multiply
    11,379.35x = 15,703.99 × 6,343.57
  4. Step 4: Simplify right side
    11,379.35x = 99,619,304.73
  5. Step 5: Solve for x
    x = 99,619,304.73/11,379.35
  6. Step 6: Final answer
    x = 8,754.39

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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.