Home / 11,997.50-18,087.60-11,151.86

Finding the Fourth Proportional to 11,997.50, 18,087.60 and 11,151.86

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Solution

The fourth proportional to 11,997.50, 18,087.60 and 11,151.86 is: 16,812.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,997.50 : 18,087.60 = 11,151.86 : x
  2. Step 2: Convert to fraction form
    11,997.50/18,087.60 = 11,151.86/x
  3. Step 3: Cross multiply
    11,997.50x = 18,087.60 × 11,151.86
  4. Step 4: Simplify right side
    11,997.50x = 201,710,382.94
  5. Step 5: Solve for x
    x = 201,710,382.94/11,997.50
  6. Step 6: Final answer
    x = 16,812.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.