Home / 13,416.86-20,122.35-5,517.44

Finding the Fourth Proportional to 13,416.86, 20,122.35 and 5,517.44

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Solution

The fourth proportional to 13,416.86, 20,122.35 and 5,517.44 is: 8,274.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.86 : 20,122.35 = 5,517.44 : x
  2. Step 2: Convert to fraction form
    13,416.86/20,122.35 = 5,517.44/x
  3. Step 3: Cross multiply
    13,416.86x = 20,122.35 × 5,517.44
  4. Step 4: Simplify right side
    13,416.86x = 111,023,758.17
  5. Step 5: Solve for x
    x = 111,023,758.17/13,416.86
  6. Step 6: Final answer
    x = 8,274.95

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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.