Home / 11,411.36-17,118-3,620.96

Finding the Fourth Proportional to 11,411.36, 17,118 and 3,620.96

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Solution

The fourth proportional to 11,411.36, 17,118 and 3,620.96 is: 5,431.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,411.36 : 17,118 = 3,620.96 : x
  2. Step 2: Convert to fraction form
    11,411.36/17,118 = 3,620.96/x
  3. Step 3: Cross multiply
    11,411.36x = 17,118 × 3,620.96
  4. Step 4: Simplify right side
    11,411.36x = 61,983,593.28
  5. Step 5: Solve for x
    x = 61,983,593.28/11,411.36
  6. Step 6: Final answer
    x = 5,431.74

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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.