Home / 11,405.65-17,109.66-3,085.72

Finding the Fourth Proportional to 11,405.65, 17,109.66 and 3,085.72

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Solution

The fourth proportional to 11,405.65, 17,109.66 and 3,085.72 is: 4,628.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,405.65 : 17,109.66 = 3,085.72 : x
  2. Step 2: Convert to fraction form
    11,405.65/17,109.66 = 3,085.72/x
  3. Step 3: Cross multiply
    11,405.65x = 17,109.66 × 3,085.72
  4. Step 4: Simplify right side
    11,405.65x = 52,795,620.06
  5. Step 5: Solve for x
    x = 52,795,620.06/11,405.65
  6. Step 6: Final answer
    x = 4,628.90

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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.