Home / 11,418.99-17,128.40-5,873.88

Finding the Fourth Proportional to 11,418.99, 17,128.40 and 5,873.88

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Solution

The fourth proportional to 11,418.99, 17,128.40 and 5,873.88 is: 8,810.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.99 : 17,128.40 = 5,873.88 : x
  2. Step 2: Convert to fraction form
    11,418.99/17,128.40 = 5,873.88/x
  3. Step 3: Cross multiply
    11,418.99x = 17,128.40 × 5,873.88
  4. Step 4: Simplify right side
    11,418.99x = 100,610,166.19
  5. Step 5: Solve for x
    x = 100,610,166.19/11,418.99
  6. Step 6: Final answer
    x = 8,810.78

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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.