Home / 12,231.53-18,339.79-5,207.53

Finding the Fourth Proportional to 12,231.53, 18,339.79 and 5,207.53

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Solution

The fourth proportional to 12,231.53, 18,339.79 and 5,207.53 is: 7,808.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.53 : 18,339.79 = 5,207.53 : x
  2. Step 2: Convert to fraction form
    12,231.53/18,339.79 = 5,207.53/x
  3. Step 3: Cross multiply
    12,231.53x = 18,339.79 × 5,207.53
  4. Step 4: Simplify right side
    12,231.53x = 95,505,006.62
  5. Step 5: Solve for x
    x = 95,505,006.62/12,231.53
  6. Step 6: Final answer
    x = 7,808.10

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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.