Home / 14,165.35-21,229.80-8,612.80

Finding the Fourth Proportional to 14,165.35, 21,229.80 and 8,612.80

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Solution

The fourth proportional to 14,165.35, 21,229.80 and 8,612.80 is: 12,908.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,165.35 : 21,229.80 = 8,612.80 : x
  2. Step 2: Convert to fraction form
    14,165.35/21,229.80 = 8,612.80/x
  3. Step 3: Cross multiply
    14,165.35x = 21,229.80 × 8,612.80
  4. Step 4: Simplify right side
    14,165.35x = 182,848,021.44
  5. Step 5: Solve for x
    x = 182,848,021.44/14,165.35
  6. Step 6: Final answer
    x = 12,908.12

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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.