Home / 13,272.72-19,911.92-4,507.44

Finding the Fourth Proportional to 13,272.72, 19,911.92 and 4,507.44

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Solution

The fourth proportional to 13,272.72, 19,911.92 and 4,507.44 is: 6,762.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.72 : 19,911.92 = 4,507.44 : x
  2. Step 2: Convert to fraction form
    13,272.72/19,911.92 = 4,507.44/x
  3. Step 3: Cross multiply
    13,272.72x = 19,911.92 × 4,507.44
  4. Step 4: Simplify right side
    13,272.72x = 89,751,784.68
  5. Step 5: Solve for x
    x = 89,751,784.68/13,272.72
  6. Step 6: Final answer
    x = 6,762.12

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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.