Home / 18,072.70-27,109.81-6,385.98

Finding the Fourth Proportional to 18,072.70, 27,109.81 and 6,385.98

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Solution

The fourth proportional to 18,072.70, 27,109.81 and 6,385.98 is: 9,579.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,072.70 : 27,109.81 = 6,385.98 : x
  2. Step 2: Convert to fraction form
    18,072.70/27,109.81 = 6,385.98/x
  3. Step 3: Cross multiply
    18,072.70x = 27,109.81 × 6,385.98
  4. Step 4: Simplify right side
    18,072.70x = 173,122,704.46
  5. Step 5: Solve for x
    x = 173,122,704.46/18,072.70
  6. Step 6: Final answer
    x = 9,579.24

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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.