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Finding the Fourth Proportional to 18,013.80, 26,996.40 and 12,073.80

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Solution

The fourth proportional to 18,013.80, 26,996.40 and 12,073.80 is: 18,094.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,013.80 : 26,996.40 = 12,073.80 : x
  2. Step 2: Convert to fraction form
    18,013.80/26,996.40 = 12,073.80/x
  3. Step 3: Cross multiply
    18,013.80x = 26,996.40 × 12,073.80
  4. Step 4: Simplify right side
    18,013.80x = 325,949,134.32
  5. Step 5: Solve for x
    x = 325,949,134.32/18,013.80
  6. Step 6: Final answer
    x = 18,094.41

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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.