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Finding the Fourth Proportional to 17,677.19, 26,511.69 and 7,811.09

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Solution

The fourth proportional to 17,677.19, 26,511.69 and 7,811.09 is: 11,714.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,677.19 : 26,511.69 = 7,811.09 : x
  2. Step 2: Convert to fraction form
    17,677.19/26,511.69 = 7,811.09/x
  3. Step 3: Cross multiply
    17,677.19x = 26,511.69 × 7,811.09
  4. Step 4: Simplify right side
    17,677.19x = 207,085,196.64
  5. Step 5: Solve for x
    x = 207,085,196.64/17,677.19
  6. Step 6: Final answer
    x = 11,714.83

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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.