Home / 13,162.88-19,727.48-5,765.36

Finding the Fourth Proportional to 13,162.88, 19,727.48 and 5,765.36

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Solution

The fourth proportional to 13,162.88, 19,727.48 and 5,765.36 is: 8,640.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.88 : 19,727.48 = 5,765.36 : x
  2. Step 2: Convert to fraction form
    13,162.88/19,727.48 = 5,765.36/x
  3. Step 3: Cross multiply
    13,162.88x = 19,727.48 × 5,765.36
  4. Step 4: Simplify right side
    13,162.88x = 113,736,024.09
  5. Step 5: Solve for x
    x = 113,736,024.09/13,162.88
  6. Step 6: Final answer
    x = 8,640.66

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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.