Home / 8,219.85-11,333.51-5,704.13

Finding the Fourth Proportional to 8,219.85, 11,333.51 and 5,704.13

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Solution

The fourth proportional to 8,219.85, 11,333.51 and 5,704.13 is: 7,864.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.85 : 11,333.51 = 5,704.13 : x
  2. Step 2: Convert to fraction form
    8,219.85/11,333.51 = 5,704.13/x
  3. Step 3: Cross multiply
    8,219.85x = 11,333.51 × 5,704.13
  4. Step 4: Simplify right side
    8,219.85x = 64,647,729.21
  5. Step 5: Solve for x
    x = 64,647,729.21/8,219.85
  6. Step 6: Final answer
    x = 7,864.83

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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.