Home / 13,772.29-20,654.75-5,979.25

Finding the Fourth Proportional to 13,772.29, 20,654.75 and 5,979.25

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Solution

The fourth proportional to 13,772.29, 20,654.75 and 5,979.25 is: 8,967.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.29 : 20,654.75 = 5,979.25 : x
  2. Step 2: Convert to fraction form
    13,772.29/20,654.75 = 5,979.25/x
  3. Step 3: Cross multiply
    13,772.29x = 20,654.75 × 5,979.25
  4. Step 4: Simplify right side
    13,772.29x = 123,499,884.04
  5. Step 5: Solve for x
    x = 123,499,884.04/13,772.29
  6. Step 6: Final answer
    x = 8,967.27

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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.