Home / 18,012.39-26,996.70-12,748.94

Finding the Fourth Proportional to 18,012.39, 26,996.70 and 12,748.94

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Solution

The fourth proportional to 18,012.39, 26,996.70 and 12,748.94 is: 19,107.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,012.39 : 26,996.70 = 12,748.94 : x
  2. Step 2: Convert to fraction form
    18,012.39/26,996.70 = 12,748.94/x
  3. Step 3: Cross multiply
    18,012.39x = 26,996.70 × 12,748.94
  4. Step 4: Simplify right side
    18,012.39x = 344,179,308.50
  5. Step 5: Solve for x
    x = 344,179,308.50/18,012.39
  6. Step 6: Final answer
    x = 19,107.92

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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.