Home / 13,863.08-20,761.52-8,001.92

Finding the Fourth Proportional to 13,863.08, 20,761.52 and 8,001.92

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Solution

The fourth proportional to 13,863.08, 20,761.52 and 8,001.92 is: 11,983.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,863.08 : 20,761.52 = 8,001.92 : x
  2. Step 2: Convert to fraction form
    13,863.08/20,761.52 = 8,001.92/x
  3. Step 3: Cross multiply
    13,863.08x = 20,761.52 × 8,001.92
  4. Step 4: Simplify right side
    13,863.08x = 166,132,034.01
  5. Step 5: Solve for x
    x = 166,132,034.01/13,863.08
  6. Step 6: Final answer
    x = 11,983.77

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1.5x scale

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.