Home / 8,231.81-12,349-3,553.14

Finding the Fourth Proportional to 8,231.81, 12,349 and 3,553.14

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Solution

The fourth proportional to 8,231.81, 12,349 and 3,553.14 is: 5,330.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.81 : 12,349 = 3,553.14 : x
  2. Step 2: Convert to fraction form
    8,231.81/12,349 = 3,553.14/x
  3. Step 3: Cross multiply
    8,231.81x = 12,349 × 3,553.14
  4. Step 4: Simplify right side
    8,231.81x = 43,877,725.86
  5. Step 5: Solve for x
    x = 43,877,725.86/8,231.81
  6. Step 6: Final answer
    x = 5,330.26

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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.