Home / 14,104.35-21,132.72-8,540.91

Finding the Fourth Proportional to 14,104.35, 21,132.72 and 8,540.91

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Solution

The fourth proportional to 14,104.35, 21,132.72 and 8,540.91 is: 12,796.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,104.35 : 21,132.72 = 8,540.91 : x
  2. Step 2: Convert to fraction form
    14,104.35/21,132.72 = 8,540.91/x
  3. Step 3: Cross multiply
    14,104.35x = 21,132.72 × 8,540.91
  4. Step 4: Simplify right side
    14,104.35x = 180,492,659.58
  5. Step 5: Solve for x
    x = 180,492,659.58/14,104.35
  6. Step 6: Final answer
    x = 12,796.95

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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.