Home / 14,512.75-21,790.99-8,279.80

Finding the Fourth Proportional to 14,512.75, 21,790.99 and 8,279.80

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Solution

The fourth proportional to 14,512.75, 21,790.99 and 8,279.80 is: 12,432.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,512.75 : 21,790.99 = 8,279.80 : x
  2. Step 2: Convert to fraction form
    14,512.75/21,790.99 = 8,279.80/x
  3. Step 3: Cross multiply
    14,512.75x = 21,790.99 × 8,279.80
  4. Step 4: Simplify right side
    14,512.75x = 180,425,039.00
  5. Step 5: Solve for x
    x = 180,425,039.00/14,512.75
  6. Step 6: Final answer
    x = 12,432.17

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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.