Home / 11,100.24-16,658.46-8,186.40

Finding the Fourth Proportional to 11,100.24, 16,658.46 and 8,186.40

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Solution

The fourth proportional to 11,100.24, 16,658.46 and 8,186.40 is: 12,285.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100.24 : 16,658.46 = 8,186.40 : x
  2. Step 2: Convert to fraction form
    11,100.24/16,658.46 = 8,186.40/x
  3. Step 3: Cross multiply
    11,100.24x = 16,658.46 × 8,186.40
  4. Step 4: Simplify right side
    11,100.24x = 136,372,816.94
  5. Step 5: Solve for x
    x = 136,372,816.94/11,100.24
  6. Step 6: Final answer
    x = 12,285.57

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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.