Home / 13,479.38-20,196.70-8,198.41

Finding the Fourth Proportional to 13,479.38, 20,196.70 and 8,198.41

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Solution

The fourth proportional to 13,479.38, 20,196.70 and 8,198.41 is: 12,284.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.38 : 20,196.70 = 8,198.41 : x
  2. Step 2: Convert to fraction form
    13,479.38/20,196.70 = 8,198.41/x
  3. Step 3: Cross multiply
    13,479.38x = 20,196.70 × 8,198.41
  4. Step 4: Simplify right side
    13,479.38x = 165,580,746.76
  5. Step 5: Solve for x
    x = 165,580,746.76/13,479.38
  6. Step 6: Final answer
    x = 12,284.01

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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.