Home / 8,631.43-12,947.22-2,788.04

Finding the Fourth Proportional to 8,631.43, 12,947.22 and 2,788.04

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Solution

The fourth proportional to 8,631.43, 12,947.22 and 2,788.04 is: 4,182.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.43 : 12,947.22 = 2,788.04 : x
  2. Step 2: Convert to fraction form
    8,631.43/12,947.22 = 2,788.04/x
  3. Step 3: Cross multiply
    8,631.43x = 12,947.22 × 2,788.04
  4. Step 4: Simplify right side
    8,631.43x = 36,097,399.62
  5. Step 5: Solve for x
    x = 36,097,399.62/8,631.43
  6. Step 6: Final answer
    x = 4,182.09

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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.