Home / 13,830.62-20,749.58-7,255.04

Finding the Fourth Proportional to 13,830.62, 20,749.58 and 7,255.04

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Solution

The fourth proportional to 13,830.62, 20,749.58 and 7,255.04 is: 10,884.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.62 : 20,749.58 = 7,255.04 : x
  2. Step 2: Convert to fraction form
    13,830.62/20,749.58 = 7,255.04/x
  3. Step 3: Cross multiply
    13,830.62x = 20,749.58 × 7,255.04
  4. Step 4: Simplify right side
    13,830.62x = 150,538,892.86
  5. Step 5: Solve for x
    x = 150,538,892.86/13,830.62
  6. Step 6: Final answer
    x = 10,884.47

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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.