Home / 13,479.85-20,201.32-8,552.95

Finding the Fourth Proportional to 13,479.85, 20,201.32 and 8,552.95

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Solution

The fourth proportional to 13,479.85, 20,201.32 and 8,552.95 is: 12,817.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.85 : 20,201.32 = 8,552.95 : x
  2. Step 2: Convert to fraction form
    13,479.85/20,201.32 = 8,552.95/x
  3. Step 3: Cross multiply
    13,479.85x = 20,201.32 × 8,552.95
  4. Step 4: Simplify right side
    13,479.85x = 172,780,808.01
  5. Step 5: Solve for x
    x = 172,780,808.01/13,479.85
  6. Step 6: Final answer
    x = 12,817.71

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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.