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Finding the Fourth Proportional to 11,100.70, 16,651.05 and 7,390.90

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Solution

The fourth proportional to 11,100.70, 16,651.05 and 7,390.90 is: 11,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100.70 : 16,651.05 = 7,390.90 : x
  2. Step 2: Convert to fraction form
    11,100.70/16,651.05 = 7,390.90/x
  3. Step 3: Cross multiply
    11,100.70x = 16,651.05 × 7,390.90
  4. Step 4: Simplify right side
    11,100.70x = 123,066,245.45
  5. Step 5: Solve for x
    x = 123,066,245.45/11,100.70
  6. Step 6: Final answer
    x = 11,086.35

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Similar ratio
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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.