Home / 14,638.20-20,197.88-8,671.02

Finding the Fourth Proportional to 14,638.20, 20,197.88 and 8,671.02

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Solution

The fourth proportional to 14,638.20, 20,197.88 and 8,671.02 is: 11,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,638.20 : 20,197.88 = 8,671.02 : x
  2. Step 2: Convert to fraction form
    14,638.20/20,197.88 = 8,671.02/x
  3. Step 3: Cross multiply
    14,638.20x = 20,197.88 × 8,671.02
  4. Step 4: Simplify right side
    14,638.20x = 175,136,221.44
  5. Step 5: Solve for x
    x = 175,136,221.44/14,638.20
  6. Step 6: Final answer
    x = 11,964.33

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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.