Home / 18,458.46-27,641.34-11,409.48

Finding the Fourth Proportional to 18,458.46, 27,641.34 and 11,409.48

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Solution

The fourth proportional to 18,458.46, 27,641.34 and 11,409.48 is: 17,085.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,458.46 : 27,641.34 = 11,409.48 : x
  2. Step 2: Convert to fraction form
    18,458.46/27,641.34 = 11,409.48/x
  3. Step 3: Cross multiply
    18,458.46x = 27,641.34 × 11,409.48
  4. Step 4: Simplify right side
    18,458.46x = 315,373,315.90
  5. Step 5: Solve for x
    x = 315,373,315.90/18,458.46
  6. Step 6: Final answer
    x = 17,085.57

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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.