Home / 11,515.86-17,273.27-3,618.18

Finding the Fourth Proportional to 11,515.86, 17,273.27 and 3,618.18

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Solution

The fourth proportional to 11,515.86, 17,273.27 and 3,618.18 is: 5,427.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,515.86 : 17,273.27 = 3,618.18 : x
  2. Step 2: Convert to fraction form
    11,515.86/17,273.27 = 3,618.18/x
  3. Step 3: Cross multiply
    11,515.86x = 17,273.27 × 3,618.18
  4. Step 4: Simplify right side
    11,515.86x = 62,497,809.09
  5. Step 5: Solve for x
    x = 62,497,809.09/11,515.86
  6. Step 6: Final answer
    x = 5,427.11

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1.5x scale

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.