Home / 18,331.80-27,497.70-6,640.26

Finding the Fourth Proportional to 18,331.80, 27,497.70 and 6,640.26

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Solution

The fourth proportional to 18,331.80, 27,497.70 and 6,640.26 is: 9,960.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.80 : 27,497.70 = 6,640.26 : x
  2. Step 2: Convert to fraction form
    18,331.80/27,497.70 = 6,640.26/x
  3. Step 3: Cross multiply
    18,331.80x = 27,497.70 × 6,640.26
  4. Step 4: Simplify right side
    18,331.80x = 182,591,877.40
  5. Step 5: Solve for x
    x = 182,591,877.40/18,331.80
  6. Step 6: Final answer
    x = 9,960.39

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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.