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Finding the Fourth Proportional to 11,262.80, 16,910.40 and 8,800.40

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Solution

The fourth proportional to 11,262.80, 16,910.40 and 8,800.40 is: 13,213.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,262.80 : 16,910.40 = 8,800.40 : x
  2. Step 2: Convert to fraction form
    11,262.80/16,910.40 = 8,800.40/x
  3. Step 3: Cross multiply
    11,262.80x = 16,910.40 × 8,800.40
  4. Step 4: Simplify right side
    11,262.80x = 148,818,284.16
  5. Step 5: Solve for x
    x = 148,818,284.16/11,262.80
  6. Step 6: Final answer
    x = 13,213.26

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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.