Home / 14,638.60-21,893.10-12,305.80

Finding the Fourth Proportional to 14,638.60, 21,893.10 and 12,305.80

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Solution

The fourth proportional to 14,638.60, 21,893.10 and 12,305.80 is: 18,404.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,638.60 : 21,893.10 = 12,305.80 : x
  2. Step 2: Convert to fraction form
    14,638.60/21,893.10 = 12,305.80/x
  3. Step 3: Cross multiply
    14,638.60x = 21,893.10 × 12,305.80
  4. Step 4: Simplify right side
    14,638.60x = 269,412,109.98
  5. Step 5: Solve for x
    x = 269,412,109.98/14,638.60
  6. Step 6: Final answer
    x = 18,404.23

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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.