Home / 18,156.96-27,176.76-9,379.80

Finding the Fourth Proportional to 18,156.96, 27,176.76 and 9,379.80

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Solution

The fourth proportional to 18,156.96, 27,176.76 and 9,379.80 is: 14,039.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,156.96 : 27,176.76 = 9,379.80 : x
  2. Step 2: Convert to fraction form
    18,156.96/27,176.76 = 9,379.80/x
  3. Step 3: Cross multiply
    18,156.96x = 27,176.76 × 9,379.80
  4. Step 4: Simplify right side
    18,156.96x = 254,912,573.45
  5. Step 5: Solve for x
    x = 254,912,573.45/18,156.96
  6. Step 6: Final answer
    x = 14,039.39

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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.