Home / 11,409.12-17,113.66-3,089.36

Finding the Fourth Proportional to 11,409.12, 17,113.66 and 3,089.36

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Solution

The fourth proportional to 11,409.12, 17,113.66 and 3,089.36 is: 4,634.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,409.12 : 17,113.66 = 3,089.36 : x
  2. Step 2: Convert to fraction form
    11,409.12/17,113.66 = 3,089.36/x
  3. Step 3: Cross multiply
    11,409.12x = 17,113.66 × 3,089.36
  4. Step 4: Simplify right side
    11,409.12x = 52,870,291.72
  5. Step 5: Solve for x
    x = 52,870,291.72/11,409.12
  6. Step 6: Final answer
    x = 4,634.04

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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.