Home / 13,029.28-19,540.16-3,668.66

Finding the Fourth Proportional to 13,029.28, 19,540.16 and 3,668.66

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Solution

The fourth proportional to 13,029.28, 19,540.16 and 3,668.66 is: 5,501.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,029.28 : 19,540.16 = 3,668.66 : x
  2. Step 2: Convert to fraction form
    13,029.28/19,540.16 = 3,668.66/x
  3. Step 3: Cross multiply
    13,029.28x = 19,540.16 × 3,668.66
  4. Step 4: Simplify right side
    13,029.28x = 71,686,203.39
  5. Step 5: Solve for x
    x = 71,686,203.39/13,029.28
  6. Step 6: Final answer
    x = 5,501.93

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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.