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Finding the Fourth Proportional to 18,326.01, 27,490.13 and 5,179.37

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Solution

The fourth proportional to 18,326.01, 27,490.13 and 5,179.37 is: 7,769.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326.01 : 27,490.13 = 5,179.37 : x
  2. Step 2: Convert to fraction form
    18,326.01/27,490.13 = 5,179.37/x
  3. Step 3: Cross multiply
    18,326.01x = 27,490.13 × 5,179.37
  4. Step 4: Simplify right side
    18,326.01x = 142,381,391.27
  5. Step 5: Solve for x
    x = 142,381,391.27/18,326.01
  6. Step 6: Final answer
    x = 7,769.36

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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.