Home / 13,343.20-18,414.64-8,037.92

Finding the Fourth Proportional to 13,343.20, 18,414.64 and 8,037.92

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Solution

The fourth proportional to 13,343.20, 18,414.64 and 8,037.92 is: 11,092.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.20 : 18,414.64 = 8,037.92 : x
  2. Step 2: Convert to fraction form
    13,343.20/18,414.64 = 8,037.92/x
  3. Step 3: Cross multiply
    13,343.20x = 18,414.64 × 8,037.92
  4. Step 4: Simplify right side
    13,343.20x = 148,015,403.15
  5. Step 5: Solve for x
    x = 148,015,403.15/13,343.20
  6. Step 6: Final answer
    x = 11,092.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.