Home / 13,539.62-20,314.30-9,198.02

Finding the Fourth Proportional to 13,539.62, 20,314.30 and 9,198.02

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Solution

The fourth proportional to 13,539.62, 20,314.30 and 9,198.02 is: 13,800.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,539.62 : 20,314.30 = 9,198.02 : x
  2. Step 2: Convert to fraction form
    13,539.62/20,314.30 = 9,198.02/x
  3. Step 3: Cross multiply
    13,539.62x = 20,314.30 × 9,198.02
  4. Step 4: Simplify right side
    13,539.62x = 186,851,337.69
  5. Step 5: Solve for x
    x = 186,851,337.69/13,539.62
  6. Step 6: Final answer
    x = 13,800.34

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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.