Home / 17,638.70-26,453.18-12,666.92

Finding the Fourth Proportional to 17,638.70, 26,453.18 and 12,666.92

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Solution

The fourth proportional to 17,638.70, 26,453.18 and 12,666.92 is: 18,996.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,638.70 : 26,453.18 = 12,666.92 : x
  2. Step 2: Convert to fraction form
    17,638.70/26,453.18 = 12,666.92/x
  3. Step 3: Cross multiply
    17,638.70x = 26,453.18 × 12,666.92
  4. Step 4: Simplify right side
    17,638.70x = 335,080,214.21
  5. Step 5: Solve for x
    x = 335,080,214.21/17,638.70
  6. Step 6: Final answer
    x = 18,996.88

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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.