Home / 13,841.82-20,765.47-5,076.81

Finding the Fourth Proportional to 13,841.82, 20,765.47 and 5,076.81

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Solution

The fourth proportional to 13,841.82, 20,765.47 and 5,076.81 is: 7,616.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,841.82 : 20,765.47 = 5,076.81 : x
  2. Step 2: Convert to fraction form
    13,841.82/20,765.47 = 5,076.81/x
  3. Step 3: Cross multiply
    13,841.82x = 20,765.47 × 5,076.81
  4. Step 4: Simplify right side
    13,841.82x = 105,422,320.37
  5. Step 5: Solve for x
    x = 105,422,320.37/13,841.82
  6. Step 6: Final answer
    x = 7,616.22

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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.