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Finding the Fourth Proportional to 11,106.88, 16,660.32 and 2,898.88

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Solution

The fourth proportional to 11,106.88, 16,660.32 and 2,898.88 is: 4,348.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,106.88 : 16,660.32 = 2,898.88 : x
  2. Step 2: Convert to fraction form
    11,106.88/16,660.32 = 2,898.88/x
  3. Step 3: Cross multiply
    11,106.88x = 16,660.32 × 2,898.88
  4. Step 4: Simplify right side
    11,106.88x = 48,296,268.44
  5. Step 5: Solve for x
    x = 48,296,268.44/11,106.88
  6. Step 6: Final answer
    x = 4,348.32

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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.