Home / 8,177.91-11,274.18-5,521.11

Finding the Fourth Proportional to 8,177.91, 11,274.18 and 5,521.11

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Solution

The fourth proportional to 8,177.91, 11,274.18 and 5,521.11 is: 7,611.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,177.91 : 11,274.18 = 5,521.11 : x
  2. Step 2: Convert to fraction form
    8,177.91/11,274.18 = 5,521.11/x
  3. Step 3: Cross multiply
    8,177.91x = 11,274.18 × 5,521.11
  4. Step 4: Simplify right side
    8,177.91x = 62,245,974.14
  5. Step 5: Solve for x
    x = 62,245,974.14/8,177.91
  6. Step 6: Final answer
    x = 7,611.48

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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.