Home / 8,381.12-11,556.61-5,392.82

Finding the Fourth Proportional to 8,381.12, 11,556.61 and 5,392.82

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Solution

The fourth proportional to 8,381.12, 11,556.61 and 5,392.82 is: 7,436.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,381.12 : 11,556.61 = 5,392.82 : x
  2. Step 2: Convert to fraction form
    8,381.12/11,556.61 = 5,392.82/x
  3. Step 3: Cross multiply
    8,381.12x = 11,556.61 × 5,392.82
  4. Step 4: Simplify right side
    8,381.12x = 62,322,732.95
  5. Step 5: Solve for x
    x = 62,322,732.95/8,381.12
  6. Step 6: Final answer
    x = 7,436.09

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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.