Home / 11,672.20-16,106.80-6,366.90

Finding the Fourth Proportional to 11,672.20, 16,106.80 and 6,366.90

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Solution

The fourth proportional to 11,672.20, 16,106.80 and 6,366.90 is: 8,785.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,672.20 : 16,106.80 = 6,366.90 : x
  2. Step 2: Convert to fraction form
    11,672.20/16,106.80 = 6,366.90/x
  3. Step 3: Cross multiply
    11,672.20x = 16,106.80 × 6,366.90
  4. Step 4: Simplify right side
    11,672.20x = 102,550,441.34
  5. Step 5: Solve for x
    x = 102,550,441.34/11,672.20
  6. Step 6: Final answer
    x = 8,785.87

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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.