Home / 11,821.69-17,720.02-5,965.93

Finding the Fourth Proportional to 11,821.69, 17,720.02 and 5,965.93

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Solution

The fourth proportional to 11,821.69, 17,720.02 and 5,965.93 is: 8,942.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.69 : 17,720.02 = 5,965.93 : x
  2. Step 2: Convert to fraction form
    11,821.69/17,720.02 = 5,965.93/x
  3. Step 3: Cross multiply
    11,821.69x = 17,720.02 × 5,965.93
  4. Step 4: Simplify right side
    11,821.69x = 105,716,398.92
  5. Step 5: Solve for x
    x = 105,716,398.92/11,821.69
  6. Step 6: Final answer
    x = 8,942.58

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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.