Home / 8,938.25-13,405.53-3,668.12

Finding the Fourth Proportional to 8,938.25, 13,405.53 and 3,668.12

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Solution

The fourth proportional to 8,938.25, 13,405.53 and 3,668.12 is: 5,501.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.25 : 13,405.53 = 3,668.12 : x
  2. Step 2: Convert to fraction form
    8,938.25/13,405.53 = 3,668.12/x
  3. Step 3: Cross multiply
    8,938.25x = 13,405.53 × 3,668.12
  4. Step 4: Simplify right side
    8,938.25x = 49,173,089.70
  5. Step 5: Solve for x
    x = 49,173,089.70/8,938.25
  6. Step 6: Final answer
    x = 5,501.42

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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.