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Finding the Fourth Proportional to 11,118.90, 16,677.10 and 2,798.90

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Solution

The fourth proportional to 11,118.90, 16,677.10 and 2,798.90 is: 4,198.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.90 : 16,677.10 = 2,798.90 : x
  2. Step 2: Convert to fraction form
    11,118.90/16,677.10 = 2,798.90/x
  3. Step 3: Cross multiply
    11,118.90x = 16,677.10 × 2,798.90
  4. Step 4: Simplify right side
    11,118.90x = 46,677,580.38
  5. Step 5: Solve for x
    x = 46,677,580.38/11,118.90
  6. Step 6: Final answer
    x = 4,198.04

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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.