Home / 13,479.55-20,237.15-11,517.75

Finding the Fourth Proportional to 13,479.55, 20,237.15 and 11,517.75

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Solution

The fourth proportional to 13,479.55, 20,237.15 and 11,517.75 is: 17,291.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.55 : 20,237.15 = 11,517.75 : x
  2. Step 2: Convert to fraction form
    13,479.55/20,237.15 = 11,517.75/x
  3. Step 3: Cross multiply
    13,479.55x = 20,237.15 × 11,517.75
  4. Step 4: Simplify right side
    13,479.55x = 233,086,463.21
  5. Step 5: Solve for x
    x = 233,086,463.21/13,479.55
  6. Step 6: Final answer
    x = 17,291.86

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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.