Home / 8,213.15-12,319.83-2,369.81

Finding the Fourth Proportional to 8,213.15, 12,319.83 and 2,369.81

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Solution

The fourth proportional to 8,213.15, 12,319.83 and 2,369.81 is: 3,554.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,213.15 : 12,319.83 = 2,369.81 : x
  2. Step 2: Convert to fraction form
    8,213.15/12,319.83 = 2,369.81/x
  3. Step 3: Cross multiply
    8,213.15x = 12,319.83 × 2,369.81
  4. Step 4: Simplify right side
    8,213.15x = 29,195,687.13
  5. Step 5: Solve for x
    x = 29,195,687.13/8,213.15
  6. Step 6: Final answer
    x = 3,554.75

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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.