Home / 8,219.91-12,331.35-2,376.84

Finding the Fourth Proportional to 8,219.91, 12,331.35 and 2,376.84

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Solution

The fourth proportional to 8,219.91, 12,331.35 and 2,376.84 is: 3,565.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.91 : 12,331.35 = 2,376.84 : x
  2. Step 2: Convert to fraction form
    8,219.91/12,331.35 = 2,376.84/x
  3. Step 3: Cross multiply
    8,219.91x = 12,331.35 × 2,376.84
  4. Step 4: Simplify right side
    8,219.91x = 29,309,645.93
  5. Step 5: Solve for x
    x = 29,309,645.93/8,219.91
  6. Step 6: Final answer
    x = 3,565.69

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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.