Home / 11,408.60-17,084.10-7,491.80

Finding the Fourth Proportional to 11,408.60, 17,084.10 and 7,491.80

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Solution

The fourth proportional to 11,408.60, 17,084.10 and 7,491.80 is: 11,218.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,408.60 : 17,084.10 = 7,491.80 : x
  2. Step 2: Convert to fraction form
    11,408.60/17,084.10 = 7,491.80/x
  3. Step 3: Cross multiply
    11,408.60x = 17,084.10 × 7,491.80
  4. Step 4: Simplify right side
    11,408.60x = 127,990,660.38
  5. Step 5: Solve for x
    x = 127,990,660.38/11,408.60
  6. Step 6: Final answer
    x = 11,218.79

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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.