Home / 13,293.20-19,933.71-3,929.88

Finding the Fourth Proportional to 13,293.20, 19,933.71 and 3,929.88

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Solution

The fourth proportional to 13,293.20, 19,933.71 and 3,929.88 is: 5,893.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.20 : 19,933.71 = 3,929.88 : x
  2. Step 2: Convert to fraction form
    13,293.20/19,933.71 = 3,929.88/x
  3. Step 3: Cross multiply
    13,293.20x = 19,933.71 × 3,929.88
  4. Step 4: Simplify right side
    13,293.20x = 78,337,069.70
  5. Step 5: Solve for x
    x = 78,337,069.70/13,293.20
  6. Step 6: Final answer
    x = 5,893.02

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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.