Home / 11,722.32-16,176.96-8,370.80

Finding the Fourth Proportional to 11,722.32, 16,176.96 and 8,370.80

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Solution

The fourth proportional to 11,722.32, 16,176.96 and 8,370.80 is: 11,551.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.32 : 16,176.96 = 8,370.80 : x
  2. Step 2: Convert to fraction form
    11,722.32/16,176.96 = 8,370.80/x
  3. Step 3: Cross multiply
    11,722.32x = 16,176.96 × 8,370.80
  4. Step 4: Simplify right side
    11,722.32x = 135,414,096.77
  5. Step 5: Solve for x
    x = 135,414,096.77/11,722.32
  6. Step 6: Final answer
    x = 11,551.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.