Home / 11,166.55-16,728.05-6,221.30

Finding the Fourth Proportional to 11,166.55, 16,728.05 and 6,221.30

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Solution

The fourth proportional to 11,166.55, 16,728.05 and 6,221.30 is: 9,319.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.55 : 16,728.05 = 6,221.30 : x
  2. Step 2: Convert to fraction form
    11,166.55/16,728.05 = 6,221.30/x
  3. Step 3: Cross multiply
    11,166.55x = 16,728.05 × 6,221.30
  4. Step 4: Simplify right side
    11,166.55x = 104,070,102.72
  5. Step 5: Solve for x
    x = 104,070,102.72/11,166.55
  6. Step 6: Final answer
    x = 9,319.81

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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.