Home / 13,983.72-20,976.36-5,663.52

Finding the Fourth Proportional to 13,983.72, 20,976.36 and 5,663.52

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Solution

The fourth proportional to 13,983.72, 20,976.36 and 5,663.52 is: 8,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.72 : 20,976.36 = 5,663.52 : x
  2. Step 2: Convert to fraction form
    13,983.72/20,976.36 = 5,663.52/x
  3. Step 3: Cross multiply
    13,983.72x = 20,976.36 × 5,663.52
  4. Step 4: Simplify right side
    13,983.72x = 118,800,034.39
  5. Step 5: Solve for x
    x = 118,800,034.39/13,983.72
  6. Step 6: Final answer
    x = 8,495.60

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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.