Home / 13,866.38-20,808.78-5,101.29

Finding the Fourth Proportional to 13,866.38, 20,808.78 and 5,101.29

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Solution

The fourth proportional to 13,866.38, 20,808.78 and 5,101.29 is: 7,655.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,866.38 : 20,808.78 = 5,101.29 : x
  2. Step 2: Convert to fraction form
    13,866.38/20,808.78 = 5,101.29/x
  3. Step 3: Cross multiply
    13,866.38x = 20,808.78 × 5,101.29
  4. Step 4: Simplify right side
    13,866.38x = 106,151,621.33
  5. Step 5: Solve for x
    x = 106,151,621.33/13,866.38
  6. Step 6: Final answer
    x = 7,655.33

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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.