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Finding the Fourth Proportional to 11,114.60, 16,704.30 and 10,920.20

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Solution

The fourth proportional to 11,114.60, 16,704.30 and 10,920.20 is: 16,412.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,114.60 : 16,704.30 = 10,920.20 : x
  2. Step 2: Convert to fraction form
    11,114.60/16,704.30 = 10,920.20/x
  3. Step 3: Cross multiply
    11,114.60x = 16,704.30 × 10,920.20
  4. Step 4: Simplify right side
    11,114.60x = 182,414,296.86
  5. Step 5: Solve for x
    x = 182,414,296.86/11,114.60
  6. Step 6: Final answer
    x = 16,412.13

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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.