Home / 14,103.57-21,121.73-8,167.92

Finding the Fourth Proportional to 14,103.57, 21,121.73 and 8,167.92

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Solution

The fourth proportional to 14,103.57, 21,121.73 and 8,167.92 is: 12,232.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,103.57 : 21,121.73 = 8,167.92 : x
  2. Step 2: Convert to fraction form
    14,103.57/21,121.73 = 8,167.92/x
  3. Step 3: Cross multiply
    14,103.57x = 21,121.73 × 8,167.92
  4. Step 4: Simplify right side
    14,103.57x = 172,520,511.49
  5. Step 5: Solve for x
    x = 172,520,511.49/14,103.57
  6. Step 6: Final answer
    x = 12,232.40

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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.