Home / 13,662.08-20,489.88-3,801.68

Finding the Fourth Proportional to 13,662.08, 20,489.88 and 3,801.68

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Solution

The fourth proportional to 13,662.08, 20,489.88 and 3,801.68 is: 5,701.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,662.08 : 20,489.88 = 3,801.68 : x
  2. Step 2: Convert to fraction form
    13,662.08/20,489.88 = 3,801.68/x
  3. Step 3: Cross multiply
    13,662.08x = 20,489.88 × 3,801.68
  4. Step 4: Simplify right side
    13,662.08x = 77,895,967.00
  5. Step 5: Solve for x
    x = 77,895,967.00/13,662.08
  6. Step 6: Final answer
    x = 5,701.62

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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.