Home / 11,421.19-17,129.31-3,101.29

Finding the Fourth Proportional to 11,421.19, 17,129.31 and 3,101.29

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Solution

The fourth proportional to 11,421.19, 17,129.31 and 3,101.29 is: 4,651.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,421.19 : 17,129.31 = 3,101.29 : x
  2. Step 2: Convert to fraction form
    11,421.19/17,129.31 = 3,101.29/x
  3. Step 3: Cross multiply
    11,421.19x = 17,129.31 × 3,101.29
  4. Step 4: Simplify right side
    11,421.19x = 53,122,903.36
  5. Step 5: Solve for x
    x = 53,122,903.36/11,421.19
  6. Step 6: Final answer
    x = 4,651.26

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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.