Home / 11,196.22-15,450.78-6,480.40

Finding the Fourth Proportional to 11,196.22, 15,450.78 and 6,480.40

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Solution

The fourth proportional to 11,196.22, 15,450.78 and 6,480.40 is: 8,942.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,196.22 : 15,450.78 = 6,480.40 : x
  2. Step 2: Convert to fraction form
    11,196.22/15,450.78 = 6,480.40/x
  3. Step 3: Cross multiply
    11,196.22x = 15,450.78 × 6,480.40
  4. Step 4: Simplify right side
    11,196.22x = 100,127,234.71
  5. Step 5: Solve for x
    x = 100,127,234.71/11,196.22
  6. Step 6: Final answer
    x = 8,942.95

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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.