Home / 11,217.88-15,499.92-8,877.79

Finding the Fourth Proportional to 11,217.88, 15,499.92 and 8,877.79

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Solution

The fourth proportional to 11,217.88, 15,499.92 and 8,877.79 is: 12,266.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,217.88 : 15,499.92 = 8,877.79 : x
  2. Step 2: Convert to fraction form
    11,217.88/15,499.92 = 8,877.79/x
  3. Step 3: Cross multiply
    11,217.88x = 15,499.92 × 8,877.79
  4. Step 4: Simplify right side
    11,217.88x = 137,605,034.78
  5. Step 5: Solve for x
    x = 137,605,034.78/11,217.88
  6. Step 6: Final answer
    x = 12,266.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.