Home / 11,180.79-16,771.69-7,908.49

Finding the Fourth Proportional to 11,180.79, 16,771.69 and 7,908.49

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Solution

The fourth proportional to 11,180.79, 16,771.69 and 7,908.49 is: 11,863.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.79 : 16,771.69 = 7,908.49 : x
  2. Step 2: Convert to fraction form
    11,180.79/16,771.69 = 7,908.49/x
  3. Step 3: Cross multiply
    11,180.79x = 16,771.69 × 7,908.49
  4. Step 4: Simplify right side
    11,180.79x = 132,638,658.79
  5. Step 5: Solve for x
    x = 132,638,658.79/11,180.79
  6. Step 6: Final answer
    x = 11,863.09

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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.