Home / 10,720.03-16,084.38-4,879.39

Finding the Fourth Proportional to 10,720.03, 16,084.38 and 4,879.39

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Solution

The fourth proportional to 10,720.03, 16,084.38 and 4,879.39 is: 7,321.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.03 : 16,084.38 = 4,879.39 : x
  2. Step 2: Convert to fraction form
    10,720.03/16,084.38 = 4,879.39/x
  3. Step 3: Cross multiply
    10,720.03x = 16,084.38 × 4,879.39
  4. Step 4: Simplify right side
    10,720.03x = 78,481,962.93
  5. Step 5: Solve for x
    x = 78,481,962.93/10,720.03
  6. Step 6: Final answer
    x = 7,321.06

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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.