Home / 11,480.40-17,223.30-3,689.28

Finding the Fourth Proportional to 11,480.40, 17,223.30 and 3,689.28

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Solution

The fourth proportional to 11,480.40, 17,223.30 and 3,689.28 is: 5,534.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,480.40 : 17,223.30 = 3,689.28 : x
  2. Step 2: Convert to fraction form
    11,480.40/17,223.30 = 3,689.28/x
  3. Step 3: Cross multiply
    11,480.40x = 17,223.30 × 3,689.28
  4. Step 4: Simplify right side
    11,480.40x = 63,541,576.22
  5. Step 5: Solve for x
    x = 63,541,576.22/11,480.40
  6. Step 6: Final answer
    x = 5,534.79

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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.