Home / 11,379.33-15,703.54-6,343.87

Finding the Fourth Proportional to 11,379.33, 15,703.54 and 6,343.87

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Solution

The fourth proportional to 11,379.33, 15,703.54 and 6,343.87 is: 8,754.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,379.33 : 15,703.54 = 6,343.87 : x
  2. Step 2: Convert to fraction form
    11,379.33/15,703.54 = 6,343.87/x
  3. Step 3: Cross multiply
    11,379.33x = 15,703.54 × 6,343.87
  4. Step 4: Simplify right side
    11,379.33x = 99,621,216.30
  5. Step 5: Solve for x
    x = 99,621,216.30/11,379.33
  6. Step 6: Final answer
    x = 8,754.58

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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.