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Finding the Fourth Proportional to 17,980.83, 26,965.41 and 8,491.68

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Solution

The fourth proportional to 17,980.83, 26,965.41 and 8,491.68 is: 12,734.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,980.83 : 26,965.41 = 8,491.68 : x
  2. Step 2: Convert to fraction form
    17,980.83/26,965.41 = 8,491.68/x
  3. Step 3: Cross multiply
    17,980.83x = 26,965.41 × 8,491.68
  4. Step 4: Simplify right side
    17,980.83x = 228,981,674.69
  5. Step 5: Solve for x
    x = 228,981,674.69/17,980.83
  6. Step 6: Final answer
    x = 12,734.77

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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.