Home / 13,717.14-20,548.31-6,311.45

Finding the Fourth Proportional to 13,717.14, 20,548.31 and 6,311.45

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Solution

The fourth proportional to 13,717.14, 20,548.31 and 6,311.45 is: 9,454.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.14 : 20,548.31 = 6,311.45 : x
  2. Step 2: Convert to fraction form
    13,717.14/20,548.31 = 6,311.45/x
  3. Step 3: Cross multiply
    13,717.14x = 20,548.31 × 6,311.45
  4. Step 4: Simplify right side
    13,717.14x = 129,689,496.85
  5. Step 5: Solve for x
    x = 129,689,496.85/13,717.14
  6. Step 6: Final answer
    x = 9,454.56

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1.5x scale

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.