Home / 11,989.02-17,985.72-3,668.94

Finding the Fourth Proportional to 11,989.02, 17,985.72 and 3,668.94

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Solution

The fourth proportional to 11,989.02, 17,985.72 and 3,668.94 is: 5,504.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.02 : 17,985.72 = 3,668.94 : x
  2. Step 2: Convert to fraction form
    11,989.02/17,985.72 = 3,668.94/x
  3. Step 3: Cross multiply
    11,989.02x = 17,985.72 × 3,668.94
  4. Step 4: Simplify right side
    11,989.02x = 65,988,527.54
  5. Step 5: Solve for x
    x = 65,988,527.54/11,989.02
  6. Step 6: Final answer
    x = 5,504.08

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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.