Home / 7,554.12-11,329.20-3,391.80

Finding the Fourth Proportional to 7,554.12, 11,329.20 and 3,391.80

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Solution

The fourth proportional to 7,554.12, 11,329.20 and 3,391.80 is: 5,086.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,554.12 : 11,329.20 = 3,391.80 : x
  2. Step 2: Convert to fraction form
    7,554.12/11,329.20 = 3,391.80/x
  3. Step 3: Cross multiply
    7,554.12x = 11,329.20 × 3,391.80
  4. Step 4: Simplify right side
    7,554.12x = 38,426,380.56
  5. Step 5: Solve for x
    x = 38,426,380.56/7,554.12
  6. Step 6: Final answer
    x = 5,086.81

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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.