Home / 7,821.43-11,732.16-3,924.92

Finding the Fourth Proportional to 7,821.43, 11,732.16 and 3,924.92

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Solution

The fourth proportional to 7,821.43, 11,732.16 and 3,924.92 is: 5,887.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.43 : 11,732.16 = 3,924.92 : x
  2. Step 2: Convert to fraction form
    7,821.43/11,732.16 = 3,924.92/x
  3. Step 3: Cross multiply
    7,821.43x = 11,732.16 × 3,924.92
  4. Step 4: Simplify right side
    7,821.43x = 46,047,789.43
  5. Step 5: Solve for x
    x = 46,047,789.43/7,821.43
  6. Step 6: Final answer
    x = 5,887.39

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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.