Home / 11,172.60-16,771.70-6,558.20

Finding the Fourth Proportional to 11,172.60, 16,771.70 and 6,558.20

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Solution

The fourth proportional to 11,172.60, 16,771.70 and 6,558.20 is: 9,844.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.60 : 16,771.70 = 6,558.20 : x
  2. Step 2: Convert to fraction form
    11,172.60/16,771.70 = 6,558.20/x
  3. Step 3: Cross multiply
    11,172.60x = 16,771.70 × 6,558.20
  4. Step 4: Simplify right side
    11,172.60x = 109,992,162.94
  5. Step 5: Solve for x
    x = 109,992,162.94/11,172.60
  6. Step 6: Final answer
    x = 9,844.81

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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.