Home / 11,279.32-16,918.16-5,039.88

Finding the Fourth Proportional to 11,279.32, 16,918.16 and 5,039.88

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Solution

The fourth proportional to 11,279.32, 16,918.16 and 5,039.88 is: 7,559.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.32 : 16,918.16 = 5,039.88 : x
  2. Step 2: Convert to fraction form
    11,279.32/16,918.16 = 5,039.88/x
  3. Step 3: Cross multiply
    11,279.32x = 16,918.16 × 5,039.88
  4. Step 4: Simplify right side
    11,279.32x = 85,265,496.22
  5. Step 5: Solve for x
    x = 85,265,496.22/11,279.32
  6. Step 6: Final answer
    x = 7,559.45

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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.