Home / 18,201.80-27,302.70-7,108.85

Finding the Fourth Proportional to 18,201.80, 27,302.70 and 7,108.85

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Solution

The fourth proportional to 18,201.80, 27,302.70 and 7,108.85 is: 10,663.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.80 : 27,302.70 = 7,108.85 : x
  2. Step 2: Convert to fraction form
    18,201.80/27,302.70 = 7,108.85/x
  3. Step 3: Cross multiply
    18,201.80x = 27,302.70 × 7,108.85
  4. Step 4: Simplify right side
    18,201.80x = 194,090,798.90
  5. Step 5: Solve for x
    x = 194,090,798.90/18,201.80
  6. Step 6: Final answer
    x = 10,663.28

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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.