Home / 8,178.58-12,267.62-2,335.20

Finding the Fourth Proportional to 8,178.58, 12,267.62 and 2,335.20

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Solution

The fourth proportional to 8,178.58, 12,267.62 and 2,335.20 is: 3,502.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.58 : 12,267.62 = 2,335.20 : x
  2. Step 2: Convert to fraction form
    8,178.58/12,267.62 = 2,335.20/x
  3. Step 3: Cross multiply
    8,178.58x = 12,267.62 × 2,335.20
  4. Step 4: Simplify right side
    8,178.58x = 28,647,346.22
  5. Step 5: Solve for x
    x = 28,647,346.22/8,178.58
  6. Step 6: Final answer
    x = 3,502.73

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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.