Home / 11,146.32-16,731.60-8,380.92

Finding the Fourth Proportional to 11,146.32, 16,731.60 and 8,380.92

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Solution

The fourth proportional to 11,146.32, 16,731.60 and 8,380.92 is: 12,580.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.32 : 16,731.60 = 8,380.92 : x
  2. Step 2: Convert to fraction form
    11,146.32/16,731.60 = 8,380.92/x
  3. Step 3: Cross multiply
    11,146.32x = 16,731.60 × 8,380.92
  4. Step 4: Simplify right side
    11,146.32x = 140,226,201.07
  5. Step 5: Solve for x
    x = 140,226,201.07/11,146.32
  6. Step 6: Final answer
    x = 12,580.49

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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.