Home / 13,609.59-20,410.49-5,287.82

Finding the Fourth Proportional to 13,609.59, 20,410.49 and 5,287.82

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Solution

The fourth proportional to 13,609.59, 20,410.49 and 5,287.82 is: 7,930.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.59 : 20,410.49 = 5,287.82 : x
  2. Step 2: Convert to fraction form
    13,609.59/20,410.49 = 5,287.82/x
  3. Step 3: Cross multiply
    13,609.59x = 20,410.49 × 5,287.82
  4. Step 4: Simplify right side
    13,609.59x = 107,926,945.28
  5. Step 5: Solve for x
    x = 107,926,945.28/13,609.59
  6. Step 6: Final answer
    x = 7,930.21

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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.