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Finding the Fourth Proportional to 11,104.80, 16,624.80 and 10,780.80

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Solution

The fourth proportional to 11,104.80, 16,624.80 and 10,780.80 is: 16,139.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,104.80 : 16,624.80 = 10,780.80 : x
  2. Step 2: Convert to fraction form
    11,104.80/16,624.80 = 10,780.80/x
  3. Step 3: Cross multiply
    11,104.80x = 16,624.80 × 10,780.80
  4. Step 4: Simplify right side
    11,104.80x = 179,228,643.84
  5. Step 5: Solve for x
    x = 179,228,643.84/11,104.80
  6. Step 6: Final answer
    x = 16,139.75

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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.