Home / 8,572.26-12,858.38-3,638.44

Finding the Fourth Proportional to 8,572.26, 12,858.38 and 3,638.44

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Solution

The fourth proportional to 8,572.26, 12,858.38 and 3,638.44 is: 5,457.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,572.26 : 12,858.38 = 3,638.44 : x
  2. Step 2: Convert to fraction form
    8,572.26/12,858.38 = 3,638.44/x
  3. Step 3: Cross multiply
    8,572.26x = 12,858.38 × 3,638.44
  4. Step 4: Simplify right side
    8,572.26x = 46,784,403.79
  5. Step 5: Solve for x
    x = 46,784,403.79/8,572.26
  6. Step 6: Final answer
    x = 5,457.65

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Similar ratio
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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.