Home / 8,194.13-12,288.07-2,928.15

Finding the Fourth Proportional to 8,194.13, 12,288.07 and 2,928.15

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Solution

The fourth proportional to 8,194.13, 12,288.07 and 2,928.15 is: 4,391.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,194.13 : 12,288.07 = 2,928.15 : x
  2. Step 2: Convert to fraction form
    8,194.13/12,288.07 = 2,928.15/x
  3. Step 3: Cross multiply
    8,194.13x = 12,288.07 × 2,928.15
  4. Step 4: Simplify right side
    8,194.13x = 35,981,312.17
  5. Step 5: Solve for x
    x = 35,981,312.17/8,194.13
  6. Step 6: Final answer
    x = 4,391.11

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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.