Home / 13,424.75-20,135.56-3,564.79

Finding the Fourth Proportional to 13,424.75, 20,135.56 and 3,564.79

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Solution

The fourth proportional to 13,424.75, 20,135.56 and 3,564.79 is: 5,346.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.75 : 20,135.56 = 3,564.79 : x
  2. Step 2: Convert to fraction form
    13,424.75/20,135.56 = 3,564.79/x
  3. Step 3: Cross multiply
    13,424.75x = 20,135.56 × 3,564.79
  4. Step 4: Simplify right side
    13,424.75x = 71,779,042.93
  5. Step 5: Solve for x
    x = 71,779,042.93/13,424.75
  6. Step 6: Final answer
    x = 5,346.77

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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.