Home / 14,081.04-21,107.52-7,843.86

Finding the Fourth Proportional to 14,081.04, 21,107.52 and 7,843.86

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Solution

The fourth proportional to 14,081.04, 21,107.52 and 7,843.86 is: 11,757.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,081.04 : 21,107.52 = 7,843.86 : x
  2. Step 2: Convert to fraction form
    14,081.04/21,107.52 = 7,843.86/x
  3. Step 3: Cross multiply
    14,081.04x = 21,107.52 × 7,843.86
  4. Step 4: Simplify right side
    14,081.04x = 165,564,431.83
  5. Step 5: Solve for x
    x = 165,564,431.83/14,081.04
  6. Step 6: Final answer
    x = 11,757.97

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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.