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Finding the Fourth Proportional to 11,287.53, 16,934.03 and 3,390.03

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Solution

The fourth proportional to 11,287.53, 16,934.03 and 3,390.03 is: 5,085.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,287.53 : 16,934.03 = 3,390.03 : x
  2. Step 2: Convert to fraction form
    11,287.53/16,934.03 = 3,390.03/x
  3. Step 3: Cross multiply
    11,287.53x = 16,934.03 × 3,390.03
  4. Step 4: Simplify right side
    11,287.53x = 57,406,865.48
  5. Step 5: Solve for x
    x = 57,406,865.48/11,287.53
  6. Step 6: Final answer
    x = 5,085.87

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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.