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Finding the Fourth Proportional to 17,660.90, 26,491.32 and 8,300.90

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Solution

The fourth proportional to 17,660.90, 26,491.32 and 8,300.90 is: 12,451.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,660.90 : 26,491.32 = 8,300.90 : x
  2. Step 2: Convert to fraction form
    17,660.90/26,491.32 = 8,300.90/x
  3. Step 3: Cross multiply
    17,660.90x = 26,491.32 × 8,300.90
  4. Step 4: Simplify right side
    17,660.90x = 219,901,798.19
  5. Step 5: Solve for x
    x = 219,901,798.19/17,660.90
  6. Step 6: Final answer
    x = 12,451.34

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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.