Home / 11,142.48-16,704.60-5,589.12

Finding the Fourth Proportional to 11,142.48, 16,704.60 and 5,589.12

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Solution

The fourth proportional to 11,142.48, 16,704.60 and 5,589.12 is: 8,379.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,142.48 : 16,704.60 = 5,589.12 : x
  2. Step 2: Convert to fraction form
    11,142.48/16,704.60 = 5,589.12/x
  3. Step 3: Cross multiply
    11,142.48x = 16,704.60 × 5,589.12
  4. Step 4: Simplify right side
    11,142.48x = 93,364,013.95
  5. Step 5: Solve for x
    x = 93,364,013.95/11,142.48
  6. Step 6: Final answer
    x = 8,379.11

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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.