Home / 13,539.00-20,308.92-3,678.49

Finding the Fourth Proportional to 13,539.00, 20,308.92 and 3,678.49

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Solution

The fourth proportional to 13,539.00, 20,308.92 and 3,678.49 is: 5,517.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,539.00 : 20,308.92 = 3,678.49 : x
  2. Step 2: Convert to fraction form
    13,539.00/20,308.92 = 3,678.49/x
  3. Step 3: Cross multiply
    13,539.00x = 20,308.92 × 3,678.49
  4. Step 4: Simplify right side
    13,539.00x = 74,706,191.41
  5. Step 5: Solve for x
    x = 74,706,191.41/13,539.00
  6. Step 6: Final answer
    x = 5,517.85

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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.