Home / 11,984.28-17,974.32-3,218.46

Finding the Fourth Proportional to 11,984.28, 17,974.32 and 3,218.46

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Solution

The fourth proportional to 11,984.28, 17,974.32 and 3,218.46 is: 4,827.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,984.28 : 17,974.32 = 3,218.46 : x
  2. Step 2: Convert to fraction form
    11,984.28/17,974.32 = 3,218.46/x
  3. Step 3: Cross multiply
    11,984.28x = 17,974.32 × 3,218.46
  4. Step 4: Simplify right side
    11,984.28x = 57,849,629.95
  5. Step 5: Solve for x
    x = 57,849,629.95/11,984.28
  6. Step 6: Final answer
    x = 4,827.13

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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.