Home / 13,531.41-20,299.74-4,169.79

Finding the Fourth Proportional to 13,531.41, 20,299.74 and 4,169.79

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Solution

The fourth proportional to 13,531.41, 20,299.74 and 4,169.79 is: 6,255.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.41 : 20,299.74 = 4,169.79 : x
  2. Step 2: Convert to fraction form
    13,531.41/20,299.74 = 4,169.79/x
  3. Step 3: Cross multiply
    13,531.41x = 20,299.74 × 4,169.79
  4. Step 4: Simplify right side
    13,531.41x = 84,645,652.85
  5. Step 5: Solve for x
    x = 84,645,652.85/13,531.41
  6. Step 6: Final answer
    x = 6,255.49

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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.