Home / 8,121.30-11,207.40-4,584.52

Finding the Fourth Proportional to 8,121.30, 11,207.40 and 4,584.52

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Solution

The fourth proportional to 8,121.30, 11,207.40 and 4,584.52 is: 6,326.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.30 : 11,207.40 = 4,584.52 : x
  2. Step 2: Convert to fraction form
    8,121.30/11,207.40 = 4,584.52/x
  3. Step 3: Cross multiply
    8,121.30x = 11,207.40 × 4,584.52
  4. Step 4: Simplify right side
    8,121.30x = 51,380,549.45
  5. Step 5: Solve for x
    x = 51,380,549.45/8,121.30
  6. Step 6: Final answer
    x = 6,326.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.