Home / 13,711.03-20,554.38-6,687.11

Finding the Fourth Proportional to 13,711.03, 20,554.38 and 6,687.11

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Solution

The fourth proportional to 13,711.03, 20,554.38 and 6,687.11 is: 10,024.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,711.03 : 20,554.38 = 6,687.11 : x
  2. Step 2: Convert to fraction form
    13,711.03/20,554.38 = 6,687.11/x
  3. Step 3: Cross multiply
    13,711.03x = 20,554.38 × 6,687.11
  4. Step 4: Simplify right side
    13,711.03x = 137,449,451.43
  5. Step 5: Solve for x
    x = 137,449,451.43/13,711.03
  6. Step 6: Final answer
    x = 10,024.74

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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.