Home / 11,720.11-16,173.35-6,685.96

Finding the Fourth Proportional to 11,720.11, 16,173.35 and 6,685.96

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Solution

The fourth proportional to 11,720.11, 16,173.35 and 6,685.96 is: 9,226.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.11 : 16,173.35 = 6,685.96 : x
  2. Step 2: Convert to fraction form
    11,720.11/16,173.35 = 6,685.96/x
  3. Step 3: Cross multiply
    11,720.11x = 16,173.35 × 6,685.96
  4. Step 4: Simplify right side
    11,720.11x = 108,134,337.74
  5. Step 5: Solve for x
    x = 108,134,337.74/11,720.11
  6. Step 6: Final answer
    x = 9,226.39

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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.