Home / 13,143.52-19,724.16-5,743.71

Finding the Fourth Proportional to 13,143.52, 19,724.16 and 5,743.71

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Solution

The fourth proportional to 13,143.52, 19,724.16 and 5,743.71 is: 8,619.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143.52 : 19,724.16 = 5,743.71 : x
  2. Step 2: Convert to fraction form
    13,143.52/19,724.16 = 5,743.71/x
  3. Step 3: Cross multiply
    13,143.52x = 19,724.16 × 5,743.71
  4. Step 4: Simplify right side
    13,143.52x = 113,289,844.26
  5. Step 5: Solve for x
    x = 113,289,844.26/13,143.52
  6. Step 6: Final answer
    x = 8,619.45

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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.