Home / 11,968.40-17,952.60-4,177.28

Finding the Fourth Proportional to 11,968.40, 17,952.60 and 4,177.28

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Solution

The fourth proportional to 11,968.40, 17,952.60 and 4,177.28 is: 6,265.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,968.40 : 17,952.60 = 4,177.28 : x
  2. Step 2: Convert to fraction form
    11,968.40/17,952.60 = 4,177.28/x
  3. Step 3: Cross multiply
    11,968.40x = 17,952.60 × 4,177.28
  4. Step 4: Simplify right side
    11,968.40x = 74,993,036.93
  5. Step 5: Solve for x
    x = 74,993,036.93/11,968.40
  6. Step 6: Final answer
    x = 6,265.92

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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.