Home / 8,220.33-12,339.27-3,542.65

Finding the Fourth Proportional to 8,220.33, 12,339.27 and 3,542.65

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Solution

The fourth proportional to 8,220.33, 12,339.27 and 3,542.65 is: 5,317.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.33 : 12,339.27 = 3,542.65 : x
  2. Step 2: Convert to fraction form
    8,220.33/12,339.27 = 3,542.65/x
  3. Step 3: Cross multiply
    8,220.33x = 12,339.27 × 3,542.65
  4. Step 4: Simplify right side
    8,220.33x = 43,713,684.02
  5. Step 5: Solve for x
    x = 43,713,684.02/8,220.33
  6. Step 6: Final answer
    x = 5,317.75

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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.