Home / 14,939.77-22,372.68-8,680.80

Finding the Fourth Proportional to 14,939.77, 22,372.68 and 8,680.80

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Solution

The fourth proportional to 14,939.77, 22,372.68 and 8,680.80 is: 12,999.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939.77 : 22,372.68 = 8,680.80 : x
  2. Step 2: Convert to fraction form
    14,939.77/22,372.68 = 8,680.80/x
  3. Step 3: Cross multiply
    14,939.77x = 22,372.68 × 8,680.80
  4. Step 4: Simplify right side
    14,939.77x = 194,212,760.54
  5. Step 5: Solve for x
    x = 194,212,760.54/14,939.77
  6. Step 6: Final answer
    x = 12,999.72

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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.