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Finding the Fourth Proportional to 18,379.92, 27,535.10 and 10,860.99

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Solution

The fourth proportional to 18,379.92, 27,535.10 and 10,860.99 is: 16,270.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379.92 : 27,535.10 = 10,860.99 : x
  2. Step 2: Convert to fraction form
    18,379.92/27,535.10 = 10,860.99/x
  3. Step 3: Cross multiply
    18,379.92x = 27,535.10 × 10,860.99
  4. Step 4: Simplify right side
    18,379.92x = 299,058,445.75
  5. Step 5: Solve for x
    x = 299,058,445.75/18,379.92
  6. Step 6: Final answer
    x = 16,270.93

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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.