Home / 8,378.73-11,561.79-4,843.08

Finding the Fourth Proportional to 8,378.73, 11,561.79 and 4,843.08

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Solution

The fourth proportional to 8,378.73, 11,561.79 and 4,843.08 is: 6,682.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.73 : 11,561.79 = 4,843.08 : x
  2. Step 2: Convert to fraction form
    8,378.73/11,561.79 = 4,843.08/x
  3. Step 3: Cross multiply
    8,378.73x = 11,561.79 × 4,843.08
  4. Step 4: Simplify right side
    8,378.73x = 55,994,673.91
  5. Step 5: Solve for x
    x = 55,994,673.91/8,378.73
  6. Step 6: Final answer
    x = 6,682.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.