Home / 11,986.65-17,988.48-4,195.53

Finding the Fourth Proportional to 11,986.65, 17,988.48 and 4,195.53

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Solution

The fourth proportional to 11,986.65, 17,988.48 and 4,195.53 is: 6,296.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.65 : 17,988.48 = 4,195.53 : x
  2. Step 2: Convert to fraction form
    11,986.65/17,988.48 = 4,195.53/x
  3. Step 3: Cross multiply
    11,986.65x = 17,988.48 × 4,195.53
  4. Step 4: Simplify right side
    11,986.65x = 75,471,207.49
  5. Step 5: Solve for x
    x = 75,471,207.49/11,986.65
  6. Step 6: Final answer
    x = 6,296.27

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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.