Home / 11,823.86-17,731.17-5,162.39

Finding the Fourth Proportional to 11,823.86, 17,731.17 and 5,162.39

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Solution

The fourth proportional to 11,823.86, 17,731.17 and 5,162.39 is: 7,741.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,823.86 : 17,731.17 = 5,162.39 : x
  2. Step 2: Convert to fraction form
    11,823.86/17,731.17 = 5,162.39/x
  3. Step 3: Cross multiply
    11,823.86x = 17,731.17 × 5,162.39
  4. Step 4: Simplify right side
    11,823.86x = 91,535,214.70
  5. Step 5: Solve for x
    x = 91,535,214.70/11,823.86
  6. Step 6: Final answer
    x = 7,741.57

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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.