Home / 8,639.19-12,956.09-2,794.59

Finding the Fourth Proportional to 8,639.19, 12,956.09 and 2,794.59

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Solution

The fourth proportional to 8,639.19, 12,956.09 and 2,794.59 is: 4,191.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639.19 : 12,956.09 = 2,794.59 : x
  2. Step 2: Convert to fraction form
    8,639.19/12,956.09 = 2,794.59/x
  3. Step 3: Cross multiply
    8,639.19x = 12,956.09 × 2,794.59
  4. Step 4: Simplify right side
    8,639.19x = 36,206,945.58
  5. Step 5: Solve for x
    x = 36,206,945.58/8,639.19
  6. Step 6: Final answer
    x = 4,191.01

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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.