Home / 7,980.09-11,961.96-3,600.63

Finding the Fourth Proportional to 7,980.09, 11,961.96 and 3,600.63

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Solution

The fourth proportional to 7,980.09, 11,961.96 and 3,600.63 is: 5,397.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.09 : 11,961.96 = 3,600.63 : x
  2. Step 2: Convert to fraction form
    7,980.09/11,961.96 = 3,600.63/x
  3. Step 3: Cross multiply
    7,980.09x = 11,961.96 × 3,600.63
  4. Step 4: Simplify right side
    7,980.09x = 43,070,592.03
  5. Step 5: Solve for x
    x = 43,070,592.03/7,980.09
  6. Step 6: Final answer
    x = 5,397.26

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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.