Home / 13,149.24-19,724.04-3,789.42

Finding the Fourth Proportional to 13,149.24, 19,724.04 and 3,789.42

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Solution

The fourth proportional to 13,149.24, 19,724.04 and 3,789.42 is: 5,684.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149.24 : 19,724.04 = 3,789.42 : x
  2. Step 2: Convert to fraction form
    13,149.24/19,724.04 = 3,789.42/x
  3. Step 3: Cross multiply
    13,149.24x = 19,724.04 × 3,789.42
  4. Step 4: Simplify right side
    13,149.24x = 74,742,671.66
  5. Step 5: Solve for x
    x = 74,742,671.66/13,149.24
  6. Step 6: Final answer
    x = 5,684.18

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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.